Page 1 ThinkSystem SR950 Setup Guide Machine Types: 7X12, 7X11, and 7X13...
Page 2 This equipment is not suitable for use in locations where children are likely to be present. In addition, be sure that you are familiar with the terms and conditions of the Lenovo warranty for your server, which can be found at: http://datacentersupport.lenovo.com/warrantylookup...
Page 3: Table Of Contents
Chapter 4. System configuration . . . 255 Configurations ....Set the network connection for the Lenovo XClarity Four-socket performance ..
Page 4 Index ....379 M.2 backplane replacement ..342 M.2 drive replacement ..346 ThinkSystem SR950 Setup Guide...
Page 5: Chapter 1. Introduction
Chapter 1. Introduction The ThinkSystem SR950 server is a high performance 4U rack server that supports up to eight Intel Xeon processors. It is an enterprise-class server designed for customers requiring four or more processors, large amounts of memory, and numerous I/O connections.
Page 6 Some of the features that are unique to the Lenovo XClarity Controller are enhanced performance, higher- resolution remote video, and expanded security options. For additional information about the Lenovo XClarity Controller, refer to the XCC documentation compatible with your server at: https://sysmgt.lenovofiles.com/help/topic/lxcc_frontend/lxcc_overview.html...
Page 7: Specifications
The server provides a QR code on each system board that you can scan using a QR code reader and scanner with a mobile device to get quick access to the Lenovo Service Information website. The Lenovo Service Information website provides additional information for parts installation, replacement videos, and error codes for server support.
Page 8 DC persistent memory modules (DCPMMs) Note: When Windows Server 2016 or 2019 is installed on the ThinkSystem SR950, the server cannot have greater than 20 TB of system memory installed unless Credential Guard and the Hyper-V role are both disabled. This issue will be addressed on Windows Server 2019 within a Microsoft Update at a future date.
Page 9 Table 1. Server Specifications (continued) Specification Description Drive expansion • Up to six SAS/SATA/NVMe drive backplanes: • Up to 24 2.5-inch hot-swap drive bays: – Up to 24 SATA/SAS drives (dependent on installed drive backplanes) – Up to 12 NVMe drives (dependent on installed drive backplanes) See “Configurations”...
Page 10 – DB-15 VGA port – DB-9 serial port – RJ-45 system-management network port. This connector is dedicated for Lenovo XClarity Controller functions and runs at 1 gigabit (Gb) speed. – USB 3.0 ports (two) RAID controller (depending on The following RAID options are available for this server: the model) •...
Page 11 Table 1. Server Specifications (continued) Specification Description Fans Up to twelve (60 mm x 38 mm) internal hot-swap system fans (dependent on server configuration) • The six upper fans are not installed for the four-processor-limited server configuration. • Only three upper fans are installed for the storage-rich configuration. Two types of fans are supported: •...
Page 12 – Minimum configuration of two microprocessors, two memory modules, one M.2 adapter, and no PCIe adapters. • Maximum configuration: 21837 BTU, 6400 W (in BTU per hour and watts) – Maximum configuration with four 1600-watt power supplies configured for non- redundant operation under maximum loading. ThinkSystem SR950 Setup Guide...
Page 13: Particulate Contamination
For information about the limits for particulates and gases, see “Particulate contamination” in ThinkSystem SR950 Maintenance Manual. • ASHRAE compliance information (see the “Operating Environment” section of ThinkSystem SR950 Product Guide at http://lenovopress.com/LP0647...
Page 14: Pcie Slot-To-Processor Mapping
If Lenovo determines that the levels of particulates or gases in your environment have caused damage to the device, Lenovo may condition provision of repair or replacement of devices or parts on implementation of appropriate remedial measures to mitigate such environmental contamination.
Page 15: Configurations
• For optimal performance, configure four processors in mesh topology. • These configuration require the upper tray filler, and could be upgraded to eight-socket ones, but it requires the 4S-to-8S Upgrade Option kit, additional components, and Lenovo hardware installation. Chapter 1...
Page 16 CPU 1 and DIMM 1-12 CPU 2 and DIMM 13-24 Table 7. Location of ten supported PCIe slots (viewed from the rear) PCIe 1 (P4) This slot is blank if a 2 x16 riser is installed. ThinkSystem SR950 Setup Guide...
Page 17: Four-Socket Performance / Storage Rich
Table 7. Location of ten supported PCIe slots (viewed from the rear) (continued) PCIe 2 (P4) PCIe 3 (P4) PCIe 4 (P4) PCIe 5 PCIe 6 PCIe 7 PCIe 8 PCIe 9 PCIe (ML2) (LOM) Four-socket performance, four processors This configuration comes with four processors, requires at least two 1100/1600-watt PSUs, and supports up •...
Page 18 • These configuration require the upper storage tray, and could be upgraded to eight-socket ones, but it requires the 4S-to-8S Upgrade Option kit, additional components, and Lenovo hardware installation. Consider “Four-socket upgradable” on page 15 or “Four-socket upgradable / storage rich” on page 17 for an easier potential upgrade in the future.
Page 19: Four-Socket Upgradable
Table 12. Location of the three processors and 36 supported memory module slots (viewed from the front) Upper tray filler Not populated CPU 4 and DIMM 37-48 CPU 1 and DIMM 1-12 CPU 2 and DIMM 13-24 Table 13. Location of the nine supported PCIe slots (viewed from the rear) PCIe 1 PCIe 2 PCIe 3...
Page 20 Four-socket upgradable, four processors This configuration comes with four processors, requires at least two 1100/1600-watt PSUs, and supports up • 48 memory modules. • 15 rear PCIe slots. See the following tables for the location of the supported components. ThinkSystem SR950 Setup Guide...
Page 21: Four-Socket Upgradable / Storage Rich
Table 18. Location of the four processors and 48 supported memory module slots (viewed from the front) Upper tray filler CPU 3 and DIMM 25-36 CPU 4 and DIMM 37-48 CPU 1 and DIMM 1-12 CPU 2 and DIMM 13-24 Table 19.
Page 22: Eight-Socket Storage Rich
Table 23. Location of the 13 supported PCIe slots (viewed from the rear) PCIe 10 PCIe PCIe 11 PCIe 12 PCIe 13 PCIe 5 PCIe 6 PCIe 7 PCIe 8 PCIe 9 PCIe 14 PCIe (ML2) (LOM) ThinkSystem SR950 Setup Guide...
Page 23: Management Options
Table 23. Location of the 13 supported PCIe slots (viewed from the rear) (continued) PCIe 15 (ML2) Eight-socket storage rich, eight processors This configuration comes with eight processors, requires at least four 1100-watt or two 1600-watt PSUs, and supports up to: •...
Page 24 Portable and light toolset for server configuration, data collection, and firmware updates. Suitable both for single-server or multi-server management contexts. Interface • OneCLI: CLI application Lenovo XClarity Essentials • Bootable Media Creator: CLI application, GUI application toolset • UpdateXpress: GUI application Usage and downloads http://sysmgt.lenovofiles.com/help/topic/xclarity_essentials/overview.html ThinkSystem SR950 Setup Guide...
Page 25 Important: Lenovo XClarity Provisioning Manager (LXPM) supported version varies by product. All versions of Lenovo XClarity Provisioning Manager are referred to as Lenovo XClarity Provisioning Manager and LXPM in this document, unless specified otherwise. To see the LXPM version supported by your server, go to https:// sysmgt.lenovofiles.com/help/topic/lxpm_frontend/lxpm_product_page.html...
Page 26 1. Most options can be updated through the Lenovo tools. Some options, such as GPU firmware or Omni- Path firmware require the use of supplier tools. 2. The server UEFI settings for option ROM must be set to Auto or UEFI to update firmware using Lenovo XClarity Administrator, Lenovo XClarity Essentials, or Lenovo XClarity Controller.
Page 27: Chapter 2. Server Components
When you contact Lenovo for help, the machine type, model, and serial number information helps support technicians to identify your server and provide faster service. Figure 1 “Location of the ID label for the ThinkSystem SR950” on page 23 shows the location of the label containing the machine type, model, and serial number.
Page 28: Front View
The label provides the default IPv4 host name and default IPv6 link local address of the XCC. Figure 3. Network access tag Front view The front view of the server varies slightly by the model. In some models, components are replaced by fillers. ThinkSystem SR950 Setup Guide...
Page 29 Fan slots (1-12) Front operator panel with pull-out LCD display 2.5-inch-drive bays (0-11) USB 2.0 port System-error LED USB 2.0 Lenovo XClarity Controller management port System ID button/LED VGA Video port Network activity LED 2.5-inch-drive bays (12-23) (on some models) The drive bays are used to install 2.5-inch drives.
Page 30 Connect a USB device, such as a mouse, keyboard, or other devices, to either of these connectors. USB 2.0 Lenovo XClarity Controller management port Connection to XClarity Controller is primarily intended for users with a mobile device running the XClarity Controller mobile application.
Page 31: Front Operator Panel
VGA Video port Connect a monitor to this connector. Notes: • When the optional front VGA connector is in use, the rear one will be disabled. • The maximum video resolution is 1920 x 1200 at 60 Hz. Drive LEDs Figure 6 “Drive LEDs”...
Page 32 Ethernet LAN. • System ID button/LED: Use this blue LED to visually locate the server among other servers. This LED is also used as a presence detection button. You can use Lenovo XClarity Administrator to light this LED remotely. •...
Page 33 Table 29. LCD system information display panel Callout Callout Information display panel Select button Scroll up button Scroll down button Note: Press the scroll-up and scroll-down buttons at the same time to refresh the LCD system information display panel. • Scroll up button: Press this button to scroll up or scroll to the left in the main menu to locate and select the system information that you want displayed.
Page 34 The LCD system information display panel displays the following types of information about the server: • Lenovo XClarity Controller (LXCC) system error log Note: The Scroll Down button will only function for this menu option when errors occur. A list of current errors reported by the system will be displayed.
Page 35: Rear View
– LXCC hostname – LXCC dedicated MAC address Note: Only the MAC address that is currently in use is displayed (dedicated or shared). – LXCC shared MAC address – IP v4 information • System environmental information: – Ambient temperature – Processor temperature –...
Page 36 A failed power supply can be replaced without turning off the server. You can purchase a power supply option from Lenovo and install the power supply to provide power redundancy or additional power capacity without turning off the server.
Page 37: Rear View Leds
Press this button to force a nonmaskable interrupt to the processor. You might have to use a pen or the end of a straightened paper clip to press the button. You can also use it to force a blue-screen memory dump. Use this button only when you are directed to do so by Lenovo Support. XClarity Controller network connector (RJ45) Used to attach an Ethernet cable to manage the system using XClarity Controller.
Page 38 You can press the power button to turn on the server. On: The server is turned on. System ID LED Use this blue LED to visually locate the server among other servers. You can use Lenovo XClarity (blue) Administrator to light this LED remotely.
Page 39: Internal Cable Routing
Table 34. Adapter LEDs (continued) Callout Callout Adapter 11 fault LED ML2 x16 network adapter fault LED Adapter 12 fault LED Adapter 7 fault LED Adapter 13 fault LED Adapter 6 fault LED Adapter 14 fault LED Adapter 5 fault LED Internal cable routing Some of the components in the server have internal cables and cable connectors.
Page 40 Note: Disengage all latches, release tabs, or locks on cable connectors when you disconnect cables from the system board. Failing to release them before removing the cables will damage the cable sockets on the system board, which are fragile. Any damage to the cable sockets might require replacing the system board. ThinkSystem SR950 Setup Guide...
Page 41: Cable Routing For Common Components
Cable routing for common components Use this section to understand how to route cables for common server components. Cable routing for common components is different for the lower and upper trays: • “Common cable routing (lower tray)” on page 37 •...
Page 42 • To: Lower system board in lower compute tray, “Front video” connector (see “System-board connectors” on page 283) Front panel USB ports • From: Front USB ports • To: Lower system board in lower compute tray, “USB” connector (see “System- board connectors” on page 283) ThinkSystem SR950 Setup Guide...
Page 43 Table 35. Cable routing, common cables (lower tray) (continued) Cable Routing Control panel cable • From: Control panel connector • To: Lower system board in lower compute tray, “Front panel” connector (see “System-board connectors” on page 283) Attention: Make sure the operator panel cable is folded beneath the connector, as shown in Figure 10 “Cable routing, common cables (lower tray)”...
Page 44: Cable Routing For Drives
– SAS drive cables (lower tray) – NVMe drive cables (lower tray) • “Drive cable routing (upper tray)” on page 44: – Common drive cables (upper tray) – SAS drive cables (upper tray) – NVMe drive cables (upper tray) ThinkSystem SR950 Setup Guide...
Page 45 Notes: • Make sure that all the cables go through the cable guides, as shown in the illustrations. See “Cable guides” on page 35 for cable guide locations and descriptions. • Some cable connectors have locks or latches that must be disengaged to disconnect the cable. Drive cable routing (lower tray) Cable routing for drive components is different for SAS and NVMe drives: •...
Page 46 • From: Lower system board in lower compute tray, “Signal” connector (see “System- board connectors” on page 283) • To: Storage interposer, “SIDEBAND” connector (see “Storage interposer connectors” on page 289) SAS drive cables (lower tray) Common drive cables are used by only SAS drives. ThinkSystem SR950 Setup Guide...
Page 47 Figure 14. Cable routing, SAS drive cables (lower tray) Table 38. Cable routing, SAS drive cables (lower tray) Routing Cable PCIe SAS interface • From: Lower system board in lower compute tray, “PCIe/NVMe” connector (see “System-board connectors” on page 283) •...
Page 48 283) • To: Drive backplane 3, connector “NVMe” (see “Drive backplane connectors” on page 291) Drive cable routing (upper tray) Cable routing for drive components is different for SAS and NVMe drives: ThinkSystem SR950 Setup Guide...
Page 49 • Common drive cables (upper tray) • SAS drive cables (upper tray) • NVMe drive cables (upper tray) Common drive cables (upper tray) Common drive cables are used by both SAS and NVMe drives. Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows the tray upside down.
Page 50 • To: Drive backplane, connector “Power” (see “Drive backplane connectors” on page 291) RAID flash power • From: RAID flash power module connector module • To: RAID card, flash power module (J14) connector (see “RAID card connectors” on page 290) ThinkSystem SR950 Setup Guide...
Page 51 Table 40. Cable routing, common drive cables (upper tray) (continued) Cable Routing Drive power • From: – Lower system board in upper compute tray, “POWER” connector (see “System- board connectors” on page 283) – Storage-board assembly in upper tray, hard disk drive power (J2) connector (see “Storage-board-assembly connectors”...
Page 52 • From: RAID card, “C1” connector (see “RAID card connectors” on page 290) backplane 6 • To: Drive backplane, connector “SAS” (see “Drive backplane connectors” on page 291) NVMe drive cables (upper tray) Common drive cables are used by only NVMe drives. ThinkSystem SR950 Setup Guide...
Page 53 Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows the tray upside down. Figure 20. Cable routing, NVMe drive cables (upper tray with system board) Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows the tray upside down.
Page 54: Parts List
Use the parts list to identify each of the components that are available for this server. For more information about ordering the parts shown in Figure 22 “Server components” on page 51: http://datacentersupport.lenovo.com/us/en/products/servers/thinksystem/sr950/7X12/parts Note: Depending on the model, your server might look slightly different from the illustration. ThinkSystem SR950 Setup Guide...
Page 55 Figure 22. Server components Chapter 2 Server components...
Page 56 Tier 1 CRU at your request with no service agreement, you will be charged for the installation. • Tier 2 customer replaceable unit (CRU): You may install a Tier 2 CRU yourself or request Lenovo to install it, at no additional charge, under the type of warranty service that is designated for your server.
Page 57 Table 43. Parts listing (continued) Index Description Tier 1 CRU Tier 2 CRU Consuma- ble and Structural part Memory module (DIMM) √ DC Persistent Memory Module (DCPMM) √ Memory module filler √ Memory air baffle √ TCM module √ Riser (slot 16 to 17) √...
Page 58: Power Cords
The cord set should have the appropriate safety approvals for the country in which the equipment will be installed. • Power cords for a specific country or region are usually available only in that country or region. ThinkSystem SR950 Setup Guide...
Page 59: Chapter 3. Server Hardware Setup
Validate that the server hardware was set up successfully. See “Validate server setup” on page 253. 3. Configure the system. a. Connect the Lenovo XClarity Controller to the management network. See “Set the network connection for the Lenovo XClarity Controller” on page 255.
Page 60: Installation Guidelines
Go to to download firmware updates for your server. ThinkSystem SR950 Drivers and Software Important: Some cluster solutions require specific code levels or coordinated code updates. If the component is part of a cluster solution, verify that the latest level of code is supported for the cluster solution before you update the code.
Page 61: System Reliability Guidelines
• The Red strip on the drives, adjacent to the release latch, indicates that the drive can be hot-swapped if the server and operating system support hot-swap capability. This means that you can remove or install the drive while the server is still running. Note: See the system specific instructions for removing or installing a hot-swap drive for any additional procedures that you might need to perform before you remove or install the drive.
Page 62: Memory Module Installation Rules And Order
Memory modules must be installed in a specific order based on the memory configuration that you implement and the number of processors and memory modules installed in the server. The following memory configurations and population sequences are supported for the ThinkSystem SR950 server: •...
Page 63 In addition, you can take advantage of a memory configurator tool, which is available at the following site: http://1config.lenovo.com/#/memory_configuration Memory module selection The following memory modules (DIMMs) are supported for use in the ThinkSystem SR950 server. See https:// for specific memory module part numbers and ordering static.lenovo.com/us/en/serverproven/index.shtml...
Page 64 2, substitute memory channels G/H/J/K/L/M for processor 1 memory channels A/B/ C/D/E/F in the discussion. • Install memory modules following only the sequences shown in “Memory module installation rules and order” on page 58. • Do not mix R-DIMMs, LR-DIMMs, and 3DS DIMMs in a server. ThinkSystem SR950 Setup Guide...
Page 65 • When multiple processors are installed, all processors within the server must have identical memory population. • Populate all memory channels for optimal performance. • If a processor has only three DIMMs that are identical (same Lenovo part number), populate all of them in memory controller 1 (IMC1). Additional requirements for memory mirroring The following rules apply for memory mirroring.
Page 66: Dram Dimm Installation Order
• If a memory channel has only single rank DIMMs, populate both single rank DIMMs on one channel. • Single DIMM-per-channel systems do not support single-rank DIMMs in sparing mode. DRAM DIMM installation order This section contains information of how to install DRAM DIMMs properly. ThinkSystem SR950 Setup Guide...
Page 67 For information about configuring memory settings, including how to enable independent memory mode, see “Memory configuration” in the ThinkSystem SR950 Setup Guide. Note: Independent memory mode is the default memory configuration of the ThinkSystem SR950 server. Chapter 3 Server hardware setup...
Page 68 15 16 17 18 19 20 21 22 23 24 10 11 12 15 16 17 18 19 20 21 22 23 24 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ThinkSystem SR950 Setup Guide...
Page 69 Installation order: independent memory mode with three processors Memory module installation order for independent (non-mirroring) memory mode with three processors installed in the server. The following tables show the DIMM population sequence for independent memory mode when three processors are installed. •...
Page 70 • To continue populating processor 3 DIMMs for a system with 25 to 36 DIMMs, see Table 48 “Independent mode with three processors (Processors 3, 25 to 36 total DIMMs installed in server)” on page 68. ThinkSystem SR950 Setup Guide...
Page 71 Table 47. Independent mode with three processors (Processor 3, 3 to 24 total DIMMs installed in server) Total Processor 3 Total DIMMs 1 10 11 12 DIMMs Related DIMM population sequences for three processor systems: • Processor 3 DIMM population sequence for systems with 25 to 36 DIMMs, see Table 48 “Independent mode with three processors (Processors 3, 25 to 36 total DIMMs installed in server)”...
Page 72 • To continue populating processor 1 and 2 DIMMs for a system with 25 to 36 DIMMs, see Table 46 “Independent mode with three processors (Processors 1 and 2, 25 to 36 total DIMMs installed in server)” on page 66. ThinkSystem SR950 Setup Guide...
Page 73 Installation order: independent memory mode with four processors Memory module installation order for independent (non-mirroring) memory mode with four processors installed in the server. The following tables show the DIMM population sequence for independent memory mode when four processors are installed. •...
Page 74 • To continue populating processor 3 and 4 DIMMs for a system with 25 to 48 DIMMs, see Table 52 “Independent mode with four processors (Processors 3 and 4, 25 to 48 total DIMMs installed in server)” on page 72. ThinkSystem SR950 Setup Guide...
Page 75 Table 51. Independent mode with four processors (Processors 3 and 4, 4 to 24 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs Related DIMM population sequences for four processor systems: •...
Page 76 • To continue populating processor 1 and 2 DIMMs for a system with 25 to 48 DIMMs, see Table 50 “Independent mode with four processors (Processors 1 and 2, 25 to 48 total DIMMs installed in server)” on page 70. ThinkSystem SR950 Setup Guide...
Page 77 Installation order: independent memory mode with six processors Memory module installation order for independent (non-mirroring) memory mode with six processors installed in the server. The following tables show the DIMM population sequence for independent memory mode when six processors are installed. •...
Page 78 – Table 56 “Independent mode with six processors (Processors 3 and 4, 6 to 24 total DIMMs installed in server)” on page 77 – Table 59 “Independent mode with six processors (Processors 5 and 6, 6 to 24 total DIMMs installed in server)” on page 80 ThinkSystem SR950 Setup Guide...
Page 79 Table 54. Independent mode with six processors (Processors 1 and 2, 25 to 48 total DIMMs installed in server) Total Processor 1 Processor 2 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 19 20 21 22 19 20 21 22 19 20 21 22...
Page 80 – Table 58 “Independent mode with six processors (Processors 3 and 4, 49 to 72 total DIMMs installed in server)” on page 79 – Table 61 “Independent mode with six processors (Processors 5 and 6, 49 to 72 total DIMMs installed in server)” on page 82 ThinkSystem SR950 Setup Guide...
Page 81 Table 56. Independent mode with six processors (Processors 3 and 4, 6 to 24 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs Related DIMM population sequences for six processor systems: •...
Page 82 – Table 54 “Independent mode with six processors (Processors 1 and 2, 25 to 48 total DIMMs installed in server)” on page 75 – Table 60 “Independent mode with six processors (Processors 5 and 6, 25 to 48 total DIMMs installed in server)” on page 81 ThinkSystem SR950 Setup Guide...
Page 83 Table 58. Independent mode with six processors (Processors 3 and 4, 49 to 72 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 15 16 17 18 19 20 21 22 15 16 17 18 19 20 21 22 10 11 12...
Page 84 – Table 53 “Independent mode with six processors (Processors 1 and 2, 6 to 24 total DIMMs installed in server)” on page 73 – Table 56 “Independent mode with six processors (Processors 3 and 4, 6 to 24 total DIMMs installed in server)” on page 77 ThinkSystem SR950 Setup Guide...
Page 85 Table 60. Independent mode with six processors (Processors 5 and 6, 25 to 48 total DIMMs installed in server) Total Processor 5 Processor 6 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 19 20 21 22 19 20 21 22 19 20 21 22...
Page 86 – Table 55 “Independent mode with six processors (Processors 1 and 2, 49 to 72 total DIMMs installed in server)” on page 76 – Table 58 “Independent mode with six processors (Processors 3 and 4, 49 to 72 total DIMMs installed in server)” on page 79 ThinkSystem SR950 Setup Guide...
Page 87 Installation order: independent memory mode with eight processors Memory module installation order for independent (non-mirroring) memory mode with eight processors installed in the server. The following tables show the DIMM population sequence for independent memory mode when eight processors are installed. •...
Page 88 – Table 70 “Independent mode with eight processors (Processors 5 and 6, 8 to 24 total DIMMs installed in server)” on page 92 – Table 74 “Independent mode with eight processors (Processors 7 and 8, 8 to 24 total DIMMs installed in server)” on page 96 ThinkSystem SR950 Setup Guide...
Page 89 Table 63. Independent mode with eight processors (Processors 1 and 2, 25 to 48 total DIMMs installed in server) Total Processor 1 Processor 2 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs Related DIMM population sequences for eight processor systems: •...
Page 90 – Table 72 “Independent mode with eight processors (Processors 5 and 6, 49 to 72 total DIMMs installed in server)” on page 94 – Table 76 “Independent mode with eight processors (Processors 7 and 8, 49 to 72 total DIMMs installed in server)” on page 98 ThinkSystem SR950 Setup Guide...
Page 91 Table 65. Independent mode with eight processors (Processors 1 and 2, 73 to 96 total DIMMs installed in server) Total Processor 1 Processor 2 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 19 20 21 22 23 24 10 11 12...
Page 92 – Table 70 “Independent mode with eight processors (Processors 5 and 6, 8 to 24 total DIMMs installed in server)” on page 92 – Table 74 “Independent mode with eight processors (Processors 7 and 8, 8 to 24 total DIMMs installed in server)” on page 96 ThinkSystem SR950 Setup Guide...
Page 93 Table 67. Independent mode with eight processors (Processors 3 and 4, 25 to 48 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs Related DIMM population sequences for eight processor systems: •...
Page 94 – Table 72 “Independent mode with eight processors (Processors 5 and 6, 49 to 72 total DIMMs installed in server)” on page 94 – Table 76 “Independent mode with eight processors (Processors 7 and 8, 49 to 72 total DIMMs installed in server)” on page 98 ThinkSystem SR950 Setup Guide...
Page 95 Table 69. Independent mode with eight processors (Processors 3 and 4, 73 to 96 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 19 20 21 22 23 24 10 11 12...
Page 96 – Table 66 “Independent mode with eight processors (Processors 3 and 4, 8 to 24 total DIMMs installed in server)” on page 88 – Table 74 “Independent mode with eight processors (Processors 7 and 8, 8 to 24 total DIMMs installed in server)” on page 96 ThinkSystem SR950 Setup Guide...
Page 97 Table 71. Independent mode with eight processors (Processors 5 and 6, 25 to 48 total DIMMs installed in server) Total Processor 5 Processor 6 Total 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs DIMMs 1 Related DIMM population sequences for eight processor systems: •...
Page 98 – Table 68 “Independent mode with eight processors (Processors 3 and 4, 49 to 72 total DIMMs installed in server)” on page 90 – Table 76 “Independent mode with eight processors (Processors 7 and 8, 49 to 72 total DIMMs installed in server)” on page 98 ThinkSystem SR950 Setup Guide...
Page 99 Table 73. Independent mode with eight processors (Processors 5 and 6, 73 to 96 total DIMMs installed in server) Total Processor 5 Processor 6 Total 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs DIMMs 1 10 11 12 19 20 21 22 23 24...
Page 100 – Table 66 “Independent mode with eight processors (Processors 3 and 4, 8 to 24 total DIMMs installed in server)” on page 88 – Table 70 “Independent mode with eight processors (Processors 5 and 6, 8 to 24 total DIMMs installed in server)” on page 92 ThinkSystem SR950 Setup Guide...
Page 101 Table 75. Independent mode with eight processors (Processors 7 and 8, 25 to 48 total DIMMs installed in server) Total Processor 7 Processor 8 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs Related DIMM population sequences for eight processor systems: •...
Page 102 – Table 68 “Independent mode with eight processors (Processors 3 and 4, 49 to 72 total DIMMs installed in server)” on page 90 – Table 72 “Independent mode with eight processors (Processors 5 and 6, 49 to 72 total DIMMs installed in server)” on page 94 ThinkSystem SR950 Setup Guide...
Page 103 Table 77. Independent mode with eight processors (Processors 7 and 8, 73 to 96 total DIMMs installed in server) Total Processor 7 Processor 8 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 19 20 21 22 23 24 10 11 12...
Page 104 • “Installation order: memory mirroring with six processors” on page 110 • “Installation order: memory mirroring with eight processors” on page 122 For information about configuring memory settings, including how to enable memory mirroring, see “Memory configuration” in the ThinkSystem SR950 Setup Guide. ThinkSystem SR950 Setup Guide...
Page 105 Installation order: memory mirroring with two processors Memory module installation order for memory mirroring with two processors installed in the server. The following table shows the DIMM population sequence for memory mirroring when two processors are installed. • Processors 1 and 2 are installed in the lower system board of the lower compute tray. Note: When adding one or more DIMMs during a memory upgrade, you might need to move other DIMMs that are already installed to new locations.
Page 106 (Processors 1 and 2, 25 to 36 total DIMMs installed in server)” on page 103. • To continue populating processor 3 for a system with 6 to 24 DIMMs, see Table 81 “Memory mirroring with three processors (Processor 3, 6 to 24 total DIMMs installed in server)” on page 104. ThinkSystem SR950 Setup Guide...
Page 107 Table 80. Memory mirroring with three processors (Processors 1 and 2, 25 to 36 total DIMMs installed in server) Total Processor 1 Processor 2 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 15 16 17 28 19 20 21 22 10 11 12...
Page 108 • To continue populating processor 1 and 2 DIMMs for a system with 6 to 24 DIMMs, see Table 79 “Memory mirroring with three processors (Processors 1 and 2, 6 to 24 total DIMMs installed in server)” on page 102. ThinkSystem SR950 Setup Guide...
Page 109 Table 82. Memory mirroring with three processors (Processor 3, 25 to 36 total DIMMs installed in server) Note: Processor 3 is actually installed in the processor 4 or processor 6 slot. Processor 3 slot is empty Processor 4/6 slot (Processor 3) Total Total 10 11 12...
Page 110 • To continue populating processor 3 and 4 DIMMs for a system with 8 to 24 DIMMs, see Table 85 “Memory mirroring with four processors (Processors 3 and 4, 8 to 24 total DIMMs installed in server)” on page 108. ThinkSystem SR950 Setup Guide...
Page 111 Table 84. Memory mirroring with four processors (Processors 1 and 2, 25 to 48 total DIMMs installed in server) Total Processor 1 Processor 2 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 25 DIMM memory mirroring configuration is not 25 DIMM memory mirroring configuration is not supported.
Page 112 • To continue populating processor 1 and 2 DIMMs for a system with 8 to 24 DIMMs, see Table 83 “Memory mirroring with four processors (Processors 1 and 2, 8 to 24 total DIMMs installed in server)” on page 106. ThinkSystem SR950 Setup Guide...
Page 113 Table 86. Memory mirroring with four processors (Processors 3 and 4, 25 to 48 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 25 DIMM memory mirroring configuration is not 25 DIMM memory mirroring configuration is not supported.
Page 114 – Table 93 “Memory mirroring with six processors (Processors 5 and 6, 12 to 24 total DIMMs installed in server)” on page 116 – Table 96 “Memory mirroring with six processors (Processors 7 and 8, 12 to 24 total DIMMs installed in server)” on page 119 ThinkSystem SR950 Setup Guide...
Page 115 Table 88. Memory mirroring with six processors (Processors 1 and 2, 25 to 48 total DIMMs installed in server) Total Processor 1 Processor 2 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 10 11 12 10 11 12...
Page 116 – Table 95 “Memory mirroring with six processors (Processors 5 and 6, 49 to 72 total DIMMs installed in server)” on page 118 – Table 98 “Memory mirroring with six processors (Processors 7 and 8, 49 to 72 total DIMMs installed in server)” on page 121 ThinkSystem SR950 Setup Guide...
Page 117 Table 90. Memory mirroring with six processors (Processors 3 and 4, 12 to 24 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs Related DIMM population sequences for six processor systems: •...
Page 118 – Table 94 “Memory mirroring with six processors (Processors 5 and 6, 25 to 48 total DIMMs installed in server)” on page 117 – Table 97 “Memory mirroring with six processors (Processors 7 and 8, 25 to 48 total DIMMs installed in server)” on page 120 ThinkSystem SR950 Setup Guide...
Page 119 Table 92. Memory mirroring with six processors (Processors 3 and 4, 49 to 72 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 15 16 17 18 19 20 21 22 15 16 17 18...
Page 120 – Table 90 “Memory mirroring with six processors (Processors 3 and 4, 12 to 24 total DIMMs installed in server)” on page 113 – Table 96 “Memory mirroring with six processors (Processors 7 and 8, 12 to 24 total DIMMs installed in server)” on page 119 ThinkSystem SR950 Setup Guide...
Page 121 Table 94. Memory mirroring with six processors (Processors 5 and 6, 25 to 48 total DIMMs installed in server) Note: Processor 6 is actually installed in the processor 7 slot. Processor 6 slot is empty Total Processor 5 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 29 DIMM memory mirroring configuration is not...
Page 122 – Table 89 “Memory mirroring with six processors (Processors 1 and 2, 49 to 72 total DIMMs installed in server)” on page 112 – Table 92 “Memory mirroring with six processors (Processors 3 and 4, 49 to 72 total DIMMs installed in server)” on page 115 ThinkSystem SR950 Setup Guide...
Page 123 – Table 98 “Memory mirroring with six processors (Processors 7 and 8, 49 to 72 total DIMMs installed in server)” on page 121 Table 96. Memory mirroring with six processors (Processors 7 and 8, 12 to 24 total DIMMs installed in server) Note: Processor 6 is actually installed in the processor 7 slot.
Page 124 – Table 91 “Memory mirroring with six processors (Processors 3 and 4, 25 to 48 total DIMMs installed in server)” on page 114 – Table 94 “Memory mirroring with six processors (Processors 5 and 6, 25 to 48 total DIMMs installed in server)” on page 117 ThinkSystem SR950 Setup Guide...
Page 125 Table 98. Memory mirroring with six processors (Processors 7 and 8, 49 to 72 total DIMMs installed in server) Processor 7 slot (Processor 6) Total Processor 8 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 10 11 12 10 11 12...
Page 126 – Table 107 “Memory mirroring with eight processors (Processors 5 and 6, 16 to 24 total DIMMs installed in server)” on page 130 – Table 111 “Memory mirroring with eight processors (Processors 7 and 8, 16 to 24 total DIMMs installed in server)” on page 134 ThinkSystem SR950 Setup Guide...
Page 127 Table 100. Memory mirroring with eight processors (Processors 1 and 2, 25 to 48 total DIMMs installed in server) Total Processor 1 Processor 2 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 10 11 12 10 11 12...
Page 128 – Table 109 “Memory mirroring with eight processors (Processors 5 and 6, 49 to 72 total DIMMs installed in server)” on page 132 – Table 113 “Memory mirroring with eight processors (Processors 7 and 8, 49 to 72 total DIMMs installed in server)” on page 136 ThinkSystem SR950 Setup Guide...
Page 129 Table 102. Memory mirroring with eight processors (Processors 1 and 2, 73 to 96 total DIMMs installed in server) Total Processor 1 Processor 2 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 19 20 21 22 23 24 10 11 12...
Page 130 – Table 107 “Memory mirroring with eight processors (Processors 5 and 6, 16 to 24 total DIMMs installed in server)” on page 130 – Table 111 “Memory mirroring with eight processors (Processors 7 and 8, 16 to 24 total DIMMs installed in server)” on page 134 ThinkSystem SR950 Setup Guide...
Page 131 Table 104. Memory mirroring with eight processors (Processors 3 and 4, 25 to 48 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs Related DIMM population sequences for eight processor systems: •...
Page 132 – Table 109 “Memory mirroring with eight processors (Processors 5 and 6, 49 to 72 total DIMMs installed in server)” on page 132 – Table 113 “Memory mirroring with eight processors (Processors 7 and 8, 49 to 72 total DIMMs installed in server)” on page 136 ThinkSystem SR950 Setup Guide...
Page 133 Table 106. Memory mirroring with eight processors (Processors 3 and 4, 73 to 96 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 19 20 21 22 23 24 10 11 12...
Page 134 – Table 103 “Memory mirroring with eight processors (Processors 3 and 4, 16 to 24 total DIMMs installed in server)” on page 126 – Table 111 “Memory mirroring with eight processors (Processors 7 and 8, 16 to 24 total DIMMs installed in server)” on page 134 ThinkSystem SR950 Setup Guide...
Page 135 Table 108. Memory mirroring with eight processors (Processors 5 and 6, 25 to 48 total DIMMs installed in server) Total Processor 5 Processor 6 Total 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs DIMMs 1 Related DIMM population sequences for eight processor systems: •...
Page 136 – Table 105 “Memory mirroring with eight processors (Processors 3 and 4, 49 to 72 total DIMMs installed in server)” on page 128 – Table 113 “Memory mirroring with eight processors (Processors 7 and 8, 49 to 72 total DIMMs installed in server)” on page 136 ThinkSystem SR950 Setup Guide...
Page 137 Table 110. Memory mirroring with eight processors (Processors 5 and 6, 73 to 96 total DIMMs installed in server) Total Processor 5 Processor 6 Total 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs DIMMs 1 10 11 12 19 20 21 22 23 24...
Page 138 – Table 103 “Memory mirroring with eight processors (Processors 3 and 4, 16 to 24 total DIMMs installed in server)” on page 126 – Table 107 “Memory mirroring with eight processors (Processors 5 and 6, 16 to 24 total DIMMs installed in server)” on page 130 ThinkSystem SR950 Setup Guide...
Page 139 Table 112. Memory mirroring with eight processors (Processors 7 and 8, 25 to 48 total DIMMs installed in server) Total Processor 7 Processor 8 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs Related DIMM population sequences for eight processor systems: •...
Page 140 – Table 105 “Memory mirroring with eight processors (Processors 3 and 4, 49 to 72 total DIMMs installed in server)” on page 128 – Table 109 “Memory mirroring with eight processors (Processors 5 and 6, 49 to 72 total DIMMs installed in server)” on page 132 ThinkSystem SR950 Setup Guide...
Page 141 Table 114. Memory mirroring with eight processors (Processors 7 and 8, 73 to 96 total DIMMs installed in server) Total Processor 7 Processor 8 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 15 16 17 18 19 20 21 22 10 11 12...
Page 142 – Table 110 “Memory mirroring with eight processors (Processors 5 and 6, 73 to 96 total DIMMs installed in server)” on page 133 ThinkSystem SR950 Setup Guide...
Page 143 • “Installation order: memory sparing with six processors” on page 149 • “Installation order: memory sparing with eight processors” on page 161 For information about configuring memory settings, including how to enable memory sparing, see “Memory configuration” in the ThinkSystem SR950 Setup Guide. Chapter 3 Server hardware setup...
Page 144 15 16 17 18 19 20 21 22 23 24 10 11 12 15 16 17 18 19 20 21 22 23 24 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ThinkSystem SR950 Setup Guide...
Page 145 Installation order: memory sparing with three processors Memory module installation order for memory sparing with three processors installed in the server. The following tables show the DIMM population sequence for memory sparing when three processors are installed. • Processors 1 and 2 are installed in the lower system board of the lower compute tray. •...
Page 146 • To continue populating processor 3 DIMMs for a system with 26 to 48 DIMMs, see Table 119 “Memory sparing with three processors (Processor 3, 26 to 48 total DIMMs installed in server)” on page 144. ThinkSystem SR950 Setup Guide...
Page 147 Table 118. Memory sparing with three processors (Processor 3, 6 to 24 total DIMMs installed in server) Processor 3 slot is empty Processor 4 slot (Processor 3) Total Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 19 20 19 20 19 20...
Page 148 • To continue populating processor 1 and 2 DIMMs for a system with 26 to 48 DIMMs, see Table 117 “Memory sparing with three processors (Processors 1 and 2, 26 to 48 total DIMMs installed in server)” on page 142. ThinkSystem SR950 Setup Guide...
Page 149 Installation order: memory sparing with four processors Memory module installation order for memory sparing with four processors installed in the server. The following tables show the DIMM population sequence for memory sparing when four processors are installed. • Processors 1 and 2 are installed in the lower system board of the lower compute tray. •...
Page 150 • To continue populating processor 3 and 4 DIMMs for a system with 26 to 48 DIMMs, see Table 123 “Memory sparing with four processors (Processors 3 and 4, 26 to 48 total DIMMs installed in server)” on page 148. ThinkSystem SR950 Setup Guide...
Page 151 Table 122. Memory sparing with four processors (Processors 3 and 4, 8 to 24 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 19 20 19 20 19 20...
Page 152 • To continue populating processor 1 and 2 DIMMs for a system with 26 to 48 DIMMs, see Table 121 “Memory sparing with four processors (Processors 1 and 2, 26 to 48 total DIMMs installed in server)” on page 146. ThinkSystem SR950 Setup Guide...
Page 153 Installation order: memory sparing with six processors Memory module installation order for memory sparing with six processors installed in the server. The following table shows the DIMM population sequence for memory sparing when six processors are installed. • Processors 1 and 2 are installed in the lower system board of the lower compute tray. •...
Page 154 – Table 131 “Memory sparing with six processors (Processors 5 and 6, 26 to 48 total DIMMs installed in server)” on page 156 – Table 134 “Memory sparing with six processors (Processor 7 slot, which is actually Processor 6, 26 to 48 total DIMMs installed in server)” on page 159 ThinkSystem SR950 Setup Guide...
Page 155 Table 126. Memory sparing with six processors (Processors 1 and 2, 50 to 72 total DIMMs installed in server) Total Processor 1 Processor 2 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 15 16 17 18 19 20 21 22 10 11 12...
Page 156 – Table 130 “Memory sparing with six processors (Processors 5, 12 to 24 total DIMMs installed in server)” on page 155 – Table 133 “Memory sparing with six processors (Processor 7 slot, which is actually Processor 6, 12 to 24 total DIMMs installed in server)” on page 158 ThinkSystem SR950 Setup Guide...
Page 157 Table 128. Memory sparing with six processors (Processors 3 and 4, 26 to 48 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 17 18 19 20 17 18 19 20 17 18 19 20...
Page 158 – Table 132 “Memory sparing with six processors (Processors 5 and 6, 50 to 72 total DIMMs installed in server)” on page 157 – Table 135 “Memory sparing with six processors (Processor 7 slot, which is actually Processor 6, 50 to 72 total DIMMs installed in server)” on page 160 ThinkSystem SR950 Setup Guide...
Page 159 Table 130. Memory sparing with six processors (Processors 5, 12 to 24 total DIMMs installed in server) Note: Processor 6 is actually installed in the processor 7 slot. Processor 6 slot is empty Total Processor 5 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs Related DIMM population sequences for six processor systems: •...
Page 160 – Table 128 “Memory sparing with six processors (Processors 3 and 4, 26 to 48 total DIMMs installed in server)” on page 153 – Table 134 “Memory sparing with six processors (Processor 7 slot, which is actually Processor 6, 26 to 48 total DIMMs installed in server)” on page 159 ThinkSystem SR950 Setup Guide...
Page 161 Table 132. Memory sparing with six processors (Processors 5 and 6, 50 to 72 total DIMMs installed in server) Processor 6 slot is empty Total Processor 5 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 10 11 12 10 11 12 10 11 12...
Page 162 – Table 127 “Memory sparing with six processors (Processors 3 and 4, 12 to 24 total DIMMs installed in server)” on page 152 – Table 130 “Memory sparing with six processors (Processors 5, 12 to 24 total DIMMs installed in server)” on page 155 ThinkSystem SR950 Setup Guide...
Page 163 Table 134. Memory sparing with six processors (Processor 7 slot, which is actually Processor 6, 26 to 48 total DIMMs installed in server) Processor 7 slot (Processor 6) Total Processor 8 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs Related DIMM population sequences for six processor systems: •...
Page 164 – Table 129 “Memory sparing with six processors (Processors 3 and 4, 50 to 72 total DIMMs installed in server)” on page 154 – Table 132 “Memory sparing with six processors (Processors 5 and 6, 50 to 72 total DIMMs installed in server)” on page 157 ThinkSystem SR950 Setup Guide...
Page 165 Installation order: memory sparing with eight processors Memory module installation order for memory sparing with eight processors installed in the server. The following table shows the DIMM population sequence for memory sparing when eight processors are installed. • Processors 1 and 2 are installed in the lower system board of the lower compute tray. •...
Page 166 – Table 145 “Memory sparing with eight processors (Processors 5 and 6, 26 to 48 total DIMMs installed in server)” on page 170 – Table 149 “Memory sparing with eight processors (Processors 7 and 8, 26 to 48 total DIMMs installed in server)” on page 174 ThinkSystem SR950 Setup Guide...
Page 167 Table 138. Memory sparing with eight processors (Processors 1 and 2, 50 to 72 total DIMMs installed in server) Total Processor 1 Processor 2 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 17 18 19 20 21 22 15 16 17 18 19 20 21 22 15 16 17 18 19 20 21 22...
Page 168 – Table 147 “Memory sparing with eight processors (Processors 5 and 6, 74 to 96 total DIMMs installed in server)” on page 172 – Table 151 “Memory sparing with eight processors (Processors 7 and 8, 74 to 96 total DIMMs installed in server)” on page 176 ThinkSystem SR950 Setup Guide...
Page 169 Table 140. Memory sparing with eight processors (Processors 3 and 4, 16 to 24 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 19 20 19 20 19 20...
Page 170 – Table 145 “Memory sparing with eight processors (Processors 5 and 6, 26 to 48 total DIMMs installed in server)” on page 170 – Table 149 “Memory sparing with eight processors (Processors 7 and 8, 26 to 48 total DIMMs installed in server)” on page 174 ThinkSystem SR950 Setup Guide...
Page 171 Table 142. Memory sparing with eight processors (Processors 3 and 4, 50 to 72 total DIMMs installed in server) Total Processor 3 Processor 4 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 17 18 19 20 21 22 17 18 19 20 21 22 17 18 19 20 21 22...
Page 172 – Table 147 “Memory sparing with eight processors (Processors 5 and 6, 74 to 96 total DIMMs installed in server)” on page 172 – Table 151 “Memory sparing with eight processors (Processors 7 and 8, 74 to 96 total DIMMs installed in server)” on page 176 ThinkSystem SR950 Setup Guide...
Page 173 Table 144. Memory sparing with eight processors (Processors 5 and 6, 16 to 24 total DIMMs installed in server) Total Processor 5 Processor 6 Total 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs DIMMs 1 19 20 19 20...
Page 174 – Table 141 “Memory sparing with eight processors (Processors 3 and 4, 26 to 48 total DIMMs installed in server)” on page 166 – Table 149 “Memory sparing with eight processors (Processors 7 and 8, 26 to 48 total DIMMs installed in server)” on page 174 ThinkSystem SR950 Setup Guide...
Page 175 Table 146. Memory sparing with eight processors (Processors 5 and 6, 50 to 72 total DIMMs installed in server) Total Processor 5 Processor 6 Total 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs DIMMs 1 17 18 19 20 21 22 17 18 19 20 21 22...
Page 176 – Table 143 “Memory sparing with eight processors (Processors 3 and 4, 74 to 96 total DIMMs installed in server)” on page 168 – Table 151 “Memory sparing with eight processors (Processors 7 and 8, 74 to 96 total DIMMs installed in server)” on page 176 ThinkSystem SR950 Setup Guide...
Page 177 Table 148. Memory sparing with eight processors (Processors 7 and 8, 16 to 24 total DIMMs installed in server) Total Processor 7 Processor 8 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 19 20 19 20 19 20...
Page 178 – Table 141 “Memory sparing with eight processors (Processors 3 and 4, 26 to 48 total DIMMs installed in server)” on page 166 – Table 145 “Memory sparing with eight processors (Processors 5 and 6, 26 to 48 total DIMMs installed in server)” on page 170 ThinkSystem SR950 Setup Guide...
Page 179 Table 150. Memory sparing with eight processors (Processors 7 and 8, 50 to 72 total DIMMs installed in server) Total Processor 7 Processor 8 Total DIMMs 1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 DIMMs 17 18 19 20 21 22 17 18 19 20 21 22 17 18 19 20 21 22...
Page 180: Dcpmm Installation Order
Only the processor with description meeting both of the following requirements support DCPMMs. – The first digit is 5 or a larger number. Note: The only exception to this rule is Intel Xeon Silver 4215, which also supports DCPMM. – The second digit is 2. ThinkSystem SR950 Setup Guide...
Page 181 • All the DRAM DIMMs that are installed must be of the same type, rank, and capacity with minimum capacity of 16 GB. It is recommended to use Lenovo DRAM DIMMs of the same part number. 3. Refer to “DCPMM installation order” on page 176 to determine the most suitable combination and the following: •...
Page 182 • All the DRAM DIMMs that are installed must be of the same type, rank, and capacity with minimum capacity of 16 GB. It is recommended to use Lenovo DRAM DIMMs of the same part number. 3. See “DCPMM installation order” on page 176 to determine the new configuration, and acquire memory modules accordingly.
Page 183 DCPMM Installation order: App Direct mode with two processors When implementing App Direct Mode, any supported DIMMs in any capacity can be installed. When two processors are installed in the server: • Processors 1 and 2 are installed in the lower system board of the lower compute tray. Several configurations are supported with implementing App Direct mode with eight processors: •...
Page 184 1 DCPMM in the system Table 158. App Direct mode with 1 DCPMM in the system In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 185 DCPMM Installation order: App Direct mode with four processors When implementing App Direct Mode, any supported DIMMs in any capacity can be installed. When eight processors are installed in the server: • Processors 1 and 2 are installed in the lower system board of the lower compute tray. •...
Page 186 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 1 DCPMM/6 DRAM DIMMs per processor Table 164. App Direct mode with 1 DCPMMs and 6 DRAM DIMMs In the table below: ThinkSystem SR950 Setup Guide...
Page 187 Table 164. App Direct mode with 1 DCPMMs and 6 DRAM DIMMs (continued) • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 1 DCPMM in the system Table 165.
Page 188 Table 167. App Direct mode with 4 DCPMMs and 6 DRAM DIMMs per processor (6 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 ThinkSystem SR950 Setup Guide...
Page 189 Table 167. App Direct mode with 4 DCPMMs and 6 DRAM DIMMs per processor (6 processors) (continued) 17 18 21 22 Processor 5 Processor 6 17 18 21 22 2 DCPMMs/ 8 DRAM DIMMs per processor Table 168. App Direct mode with 2 DCPMMs and 8 DRAM DIMMs per processor (8 processors) In the table below: •...
Page 190 Table 172. App Direct mode with 1 DCPMM in the system In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 191 Table 172. App Direct mode with 1 DCPMM in the system (continued) Processor 5 Processor 6 17 18 21 22 Chapter 3 Server hardware setup...
Page 192 4 DCPMMs/ 6 DRAM DIMMs per processor Table 174. App Direct mode with 4 DCPMMs and 6 DRAM DIMMs per processor (8 processors) In the table below: • P = DCPMM • D = DRAM DIMM ThinkSystem SR950 Setup Guide...
Page 193 Table 174. App Direct mode with 4 DCPMMs and 6 DRAM DIMMs per processor (8 processors) (continued) Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 Processor 5 Processor 6 17 18 21 22 Processor 7 Processor 8 17 18...
Page 194 1 DCPMM/6 DRAM DIMMs per processor Table 178. App Direct mode with 1 DCPMMs and 6 DRAM DIMMs In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 195 Table 178. App Direct mode with 1 DCPMMs and 6 DRAM DIMMs (continued) Processor 3 Processor 4 17 18 21 22 Processor 5 Processor 6 17 18 21 22 Processor 7 Processor 8 17 18 21 22 1 DCPMM in the system Table 179.
Page 196 Table 182. Mixed Memory mode with 2 DCPMMs and 6 DRAM DIMMs per processor (2 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 13 14 17 18 20 21 22 23 ThinkSystem SR950 Setup Guide...
Page 197 2 DCPMMs/ 4 DRAM DIMMs per processor Table 183. Mixed Memory mode with 2 DCPMMs and 4 DRAM DIMMs per processor (2 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Chapter 3...
Page 198 21 22 2 DCPMMs/ 6 DRAM DIMMs per processor Note: Only RDIMMs are recommended for this configuration Table 186. Mixed Memory mode with 2 DCPMMs and 6 DRAM DIMMs per processor (4 processors) In the table below: ThinkSystem SR950 Setup Guide...
Page 199 Table 186. Mixed Memory mode with 2 DCPMMs and 6 DRAM DIMMs per processor (4 processors) (continued) • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 13 14 17 18 20 21 22 23 Processor 3 Processor 4 13 14 17 18...
Page 200 Table 189. Mixed Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (6 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 Processor 5 Processor 6 ThinkSystem SR950 Setup Guide...
Page 201 Table 189. Mixed Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (6 processors) (continued) 17 18 21 22 2 DCPMMs/ 6 DRAM DIMMs per processor Note: Only RDIMMs are recommended for this configuration Table 190. Mixed Memory mode with 2 DCPMMs and 6 DRAM DIMMs per processor (6 processors) In the table below: •...
Page 202 Table 193. Mixed Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (8 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 ThinkSystem SR950 Setup Guide...
Page 203 Table 193. Mixed Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (8 processors) (continued) 17 18 21 22 Processor 5 Processor 6 17 18 21 22 Processor 7 Processor 8 17 18 21 22 2 DCPMMs/ 6 DRAM DIMMs per processor Note: Only RDIMMs are recommended for this configuration Table 194.
Page 204 17 18 21 22 Memory Mode In Memory Mode, 100% of DCPMM capacity acts as system memory. The DRAM DIMMs act as cache. When implementing Memory Mode, any supported DIMMs in any capacity can be installed. ThinkSystem SR950 Setup Guide...
Page 205 DCPMM Installation order: Memory mode with two processors When implementing Memory mode, any supported DIMMs in any capacity can be installed. When two processors are installed in the server: • Processors 1 and 2 are installed in the lower system board of the lower compute tray. Several configurations are supported with implementing Memory mode with two processors: •...
Page 206 Table 200. App Direct mode with 2 DCPMMs and 4 DRAM DIMMs per processor (2 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 207 DCPMM Installation order: Memory mode with four processors When implementing Memory mode, any supported DIMMs in any capacity can be installed. However, you should consider using DIMMs that are greater than 32 GB. When four processors are installed in the server: •...
Page 208 Table 205. App Direct mode with 2 DCPMMs and 4 DRAM DIMMs per processor (4 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 209 DCPMM Installation order: Memory mode with six processors When implementing Memory mode, any supported DIMMs in any capacity can be installed. However, you should consider using DIMMs that are greater than 32 GB. When six processors are installed in the server: •...
Page 210 17 18 20 21 22 23 2 DCPMMs/ 4 DRAM DIMMs per processor Table 210. App Direct mode with 2 DCPMMs and 4 DRAM DIMMs per processor (6 processors) In the table below: • P = DCPMM ThinkSystem SR950 Setup Guide...
Page 211 Table 210. App Direct mode with 2 DCPMMs and 4 DRAM DIMMs per processor (6 processors) (continued) • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 Processor 5 Processor 6 17 18 21 22...
Page 212 Table 212. Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (8 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 213 Table 212. Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (8 processors) (continued) Processor 3 Processor 4 17 18 21 22 Processor 5 Processor 6 17 18 21 22 Processor 7 Processor 8 17 18 21 22 2 DCPMMs/ 8 DRAM DIMMs per processor Table 213.
Page 214: Install Server Hardware Options
Attention: To ensure the components you install work correctly without problems, read the following precautions carefully. • Make sure the components you are installing are supported by the server. For a list of supported optional components for the server, see https://static.lenovo.com/us/en/serverproven/index.shtml ThinkSystem SR950 Setup Guide...
Page 215: Remove The Front Cover
• Always download and apply the latest firmware. This will help ensure that any known issues are addressed, and that your server is ready to work with optimal performance. Go to ThinkSystem SR950 Drivers and Software to download firmware updates for your server.
Page 216 Figure 28. System board installation Step 1. Align the system board with the rails in the compute tray; then, insert the system board, making sure that the rails on the board fit into the slots in the compute tray. ThinkSystem SR950 Setup Guide...
Page 217: Install A Processor-Heat-Sink Module
Step 2. Slide the system board into the compute tray until the release clips snap into the locked position. Step 3. Connect all cables on the system board that go to connectors in the compute tray. See “Internal cable routing” on page 35. After you install the system board: •...
Page 218 2. Remove the compute tray where the system board is installed. See “Remove a compute tray” on page 305. 3. If you are installing a PHM in the lower system board, remove the upper system board or system board filler. See “Remove a system board” on page 309. ThinkSystem SR950 Setup Guide...
Page 219 Figure 29. Processor locations on system board Figure 30. Processor layout for multi-processor systems (viewed from front of server) Complete the following steps to install a PHM. Watch the procedure. A video of the installation process is available: • YouTube •...
Page 220: Install A Memory Module
4. If you have no additional options to install in the upper or lower compute tray, install the front cover. See “Install the front cover” on page 227. Install a memory module Memory modules are installed in the system boards that are accessed from the front of the server. S002 ThinkSystem SR950 Setup Guide...
Page 221 If you are installing an optional processor, install it before installing memory modules. See “Install a processor-heat-sink module” on page 213 for a list of all the memory module types and https://static.lenovo.com/us/en/serverproven/index.shtml capacities that are supported for your server. Notes: •...
Page 222 System board 1 System board 2 System board 3 System board 4 (lower board, lower (upper board, lower (lower board, upper (upper board, upper tray) DIMM number tray) DIMM number tray) DIMM number tray) DIMM number ThinkSystem SR950 Setup Guide...
Page 223 Table 216. Memory module locations on each system board (continued) DIMM number System board 1 System board 2 System board 3 System board 4 (lower board, lower (upper board, lower (lower board, upper (upper board, upper tray) DIMM number tray) DIMM number tray) DIMM number tray) DIMM number Complete the following steps to install a memory module:...
Page 224: Install A Hard Disk Drive Backplane
Hard disk drive backplanes in the upper compute tray or optional storage tray are accessed from the front of the server. There are several types of hard disk drive backplane. Steps that are backplane specific are noted in each procedure. S002 ThinkSystem SR950 Setup Guide...
Page 225 CAUTION: The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 226 Make sure that all of the cables are correctly routed after they have been connected. After you install the hard disk drive backplane: 1. Install the fan cage. See “Install a fan cage (upper tray)” on page 317. 2. Turn the tray right-side up. ThinkSystem SR950 Setup Guide...
Page 227 3. If you have no additional options to install in the upper compute tray or storage tray, install it into the chassis. See “Install a compute tray” on page 307 or “Install the storage tray (fully removed)” on page 377. 4.
Page 228 Step 2. Install the hard disk drive backplane. Note: Existing cables might need to be removed from their retaining clips or moved to the side to install the backplane. Figure 35. Hard disk drive backplane (lower) installation ThinkSystem SR950 Setup Guide...
Page 229: Install A Hard Disk Drive
Align the backplane with its location in the server; then, insert the backplane and push it down until it is fully seated. Step 3. Repeat Step 1 on page 224 and Step 2 on page 224 for each hard disk drive backplane being installed in the lower compute tray.
Page 230 Hard disk drive installation considerations Hard disk drives must be installed in a specific order based on the hard disk drive configuration that you implement on your server. ThinkSystem SR950 Setup Guide...
Page 231: Install The Front Cover
The following notes describe the type of hard disk drives that the server supports and other information that you must consider when installing a hard disk drive: • For a complete list of hard disk drives supported for the server, see https://static.lenovo.com/us/en/ serverproven/index.shtml • The server supports up to 24 2.5-inch hard disk drives.
Page 232: Install An Adapter
Review the following guidelines before installing the Mellanox Innova™-2 Flex Open Programmable SmartNIC: • If you install the Mellanox Innova™-2 Flex Open Programmable SmartNIC in the ThinkSystem SR950, the maximum supported ambient temperature for the system is 35°C. • The Mellanox Innova™-2 Flex Open Programmable SmartNIC is not supported in the following adapter slots: 1, 5, and 10.
Page 233 Make sure that all server power cords are disconnected from their power sources before performing this procedure. Before you install an optional LOM adapter in slot 9: 1. If the I/O tray is installed in the server, remove it. See “Remove the I/O tray” on page 334. 2.
Page 234 3. Make sure that there is no filler installed in the slot where you are installing the adapter. Complete the following steps to install an adapter for slot 5 to 8. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 235 Figure 39. Adapter installation (slot 5 to 8) Step 1. Align the adapter with the I/O tray slot and insert it; then, press the adapter into the I/O tray until the connector is fully seated. After installing an optional adapter in slot 5 to 8: 1.
Page 236 PCIe adapters in slot 10 to 15 are in an I/O tray riser that is accessed from the rear of the server. With the riser removed from the I/O tray, open the retention latch and insert the adapter in the riser; then, close the retention latch. S002 CAUTION: ThinkSystem SR950 Setup Guide...
Page 237 The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 238 3. Make sure that there is no filler installed in the slot where you are installing the adapter. Complete the following steps to install an adapter in slots 16 or 17. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 239 Figure 42. Adapter installation (slot 16 to 17) Step 1. Open the retention latch. Step 2. Align the adapter with the riser slot and insert it; then, press the adapter into the riser until the connector is fully seated. Step 3. Close and lock the retention latch.
Page 240 Notes: • When installing two drives, align and support both drives before sliding the retainer forward to secure the drives. • When only one drive is installed, it must be in slot 0. ThinkSystem SR950 Setup Guide...
Page 241: Install A Riser
Figure 44. M.2 drive slots Table 217. M.2 drive slots Slot 0 Slot 1 Step 3. Secure the M.2 drives in the backplane. Figure 45. Securing the M.2 drives Attention: Make sure the two nubs on the retainer are in the small holes on the M.2 backplane when the retainer is slid forward.
Page 242 5. If any of the adapters in the riser have internal cables, make sure that they are connected before installing the riser in the I/O tray. Complete the following steps to install the riser for slot 1 to 4. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 243 Figure 46. Riser for slot 1 to 4 (riser 1) installation Step 1. Align the riser with the I/O tray and insert it; then, press the riser into the I/O tray until the connector is fully seated. Step 2. Tighten the two captive screws (items 4 in preceding figure) that secure the riser to the I/O tray board.
Page 244 6. If any of the adapters in the riser have internal cables, make sure that they are connected before installing the riser in the I/O tray. Complete the following steps to install the riser for slot 10 to 15. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 245 Figure 47. Riser for slot 10 to 15 (riser 2) installation Step 1. Align the riser with the I/O tray and insert it; then, press the riser into the I/O tray until the connector is fully seated. Step 2. Tighten the two captive screws (items 4 in preceding figure) that secure the riser to the I/O tray board.
Page 246 The riser for adapter slot 16 to 17 is in the I/O tray that is accessed from the rear of the server. After installing adapters in the riser, insert the riser in the I/O tray and secure it with the captive screw. S002 ThinkSystem SR950 Setup Guide...
Page 247 CAUTION: The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 248 The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. “ ” on page 56 “ ” on page 254 ThinkSystem SR950 Setup Guide...
Page 249: Install A Power Supply
CAUTION: Make sure that all server power cords are disconnected from their power sources before performing this procedure. Install the M.2 drives before you install the M.2 backplane. See “Install an M.2 drive” on page 235. Before you install an M.2 backplane option: 1.
Page 250 Important: Observe the following criteria when installing power supplies: • All power supplies installed in the server must be of the same capacity. • 1100-watt power supplies accept either 100-127 vac or 200-240 vac input. • 1600-watt power supplies accept only 200-240 vac input. ThinkSystem SR950 Setup Guide...
Page 251 – For power source redundancy, the power supplies in bays 1 and 3 must be fed from a different power source than the power supplies in bays 2 and 4. – Use the Lenovo Capacity Planner to calculate the required power capacity for what is configured for your server. More information about the Lenovo Capacity Planner is available at: https:// datacentersupport.lenovo.com/solutions/lnvo-lcp...
Page 252: Kit
• Nine Torx-head screws (you will use eight screws, but an extra screw is included in case it is needed) Important: The 4S Performance to 8S Upgrade Kit enables the ThinkSystem SR950 server to support eight processors. However, extra processors do not come with the conversion kit; you are responsible for purchasing the desired number and type of processors.
Page 253 18 - 32 kg (39 - 70 lb) 32 - 55 kg (70 - 121 lb) CAUTION: Use safe practices when lifting. “ ” on page 56 “ ” on page 254 CAUTION: Make sure that all server power cords are disconnected from their power sources before performing this procedure.
Page 254 Step 5. If the server is in a rack, remove it from the rack. See the ThinkSystem SR950 Rack Installation Instructions, which is available here: http://thinksystem.lenovofiles.com/help/topic/7X12/pdf_files.html Step 6. Remove the midplanes from the server (depending on the configuration, you might need to remove up to 6 midplanes).
Page 255 Slide the upper tray filler out from the front of the server. Some cables may be packaged separately with the option, make sure all the cables are connected correctly to the lower system board and upper system board in the compute tray. http://thinksystem.lenovofiles.com/help/topic/7X12/cable_routing_common.html http:// thinksystem.lenovofiles.com/help/topic/7X12/cable_routing_for_drives.html...
Page 256 Remove the fan fillers in fan bay 8, 10, and 12, and install fans in those bays. http://thinksystem.lenovofiles.com/help/topic/7X12/install_the_fan.html Step 10. Install the server back into a rack. See the ThinkSystem SR950 Rack Installation Instructions, which is available here: http://thinksystem.lenovofiles.com/help/topic/7X12/pdf_files.html Step 11. Install all the compute tray and I/O tray that were removed.
Page 257: Install The Server In A Rack
• The server can start or restart automatically after a power interruption. • The server can respond to remote power-on requests sent to the Lenovo XClarity Controller. For information about powering off the server, see “Power off the server (disconnect input power)” on page 254.
Page 258: Power Off The Server (Disconnect Input Power)
Power off the server (disconnect input power) The server remains in a standby state when it is connected to a power source, allowing the Lenovo XClarity Controller to respond to remote power-on requests. To remove all power from the server (power LED off), you must disconnect all power cables.
Page 259: Chapter 4. System Configuration
The following methods are available to set the network connection for the Lenovo XClarity Controller if you are not using DHCP: • If a monitor is attached to the server, you can use Lenovo XClarity Provisioning Manager to set the network connection.
Page 260: Update The Firmware
• If you are using the Lenovo XClarity Administrator Mobile app from a mobile device, you can connect to the Lenovo XClarity Controller through the Lenovo XClarity Controller USB connector on the front of the server. For the location of the Lenovo XClarity Controller USB connector, see “Front view” on page 24.
Page 261 Hat Enterprise Linux (RHEL) and SUSE Linux Enterprise Server (SLES) operating system distributions. Machine-type-specific firmware-only UXSPs are also available. Firmware updating tools See the following table to determine the best Lenovo tool to use for installing and setting up the firmware: Tool Update...
Page 262 • Lenovo XClarity Controller If you need to install a specific update, you can use the Lenovo XClarity Controller interface for a specific server. Notes: – To perform an in-band update through Windows or Linux, the operating system driver must be installed and the Ethernet-over-USB (sometimes called LAN over USB) interface must be enabled.
Page 263: Configure The Firmware
Several options are available to install and set up the firmware for the server. Important: Do not configure option ROMs to be set to Legacy unless directed to do so by Lenovo Support. This setting prevents UEFI drivers for the slot devices from loading, which can cause negative side effects for Lenovo software, such as Lenovo XClarity Administrator and Lenovo XClarity Essentials OneCLI, and to the Lenovo XClarity Controller.
Page 264: Memory Configuration
In addition, you can choose to make the text-based interface the default interface that is displayed when you press F1. To do this, go to Lenovo XClarity Provisioning Manager ➙ UEFI Setup ➙ System Settings ➙ <F1>Start Control ➙ Text Setup. To start the server with Graphic User Interface, select Auto or Tool Suite.
Page 265: Independent Memory Mode
ThinkSystem SR950 Memory Population Reference Independent memory mode Independent memory mode provides the highest level of memory performance, but lacks failover protection. the ThinkSystem SR950 Memory Population Reference for independent memory mode requirements and recommended memory module population sequences. Memory mirroring Memory-mirroring mode provides full memory redundancy while reducing the total system memory capacity in half.
Page 266 DCPMMs can be managed with the following tools: • Lenovo XClarity Provisioning Manager To open Lenovo XClarity Provisioning Manager, power on the system and press F1 as soon as the logo screen appears. If a password has been set, enter the password to unlock Lenovo XClarity Provisioning Manager.
Page 267 These values are selectable options for DCPMM settings, and do not represent the current DCPMM status. In addition, you can take advantage of a memory configurator, which is available at the following site: http://1config.lenovo.com/#/memory_configuration Alternatively, set DCPMM Goals with the following commands in OneCLI: Chapter 4...
Page 268 – Platform: Choose this option to run security operation on all the installed DCPMM units at once. A platform passphrase is stored and automatically applied to unlock DCPMMs before operating system starts running, but the passphrase still has to be disabled manually for secure erase. ThinkSystem SR950 Setup Guide...
Page 269 In the case the passphrases are lost or forgotten, the stored data cannot be backed up or restored, but you can contact Lenovo service for administrative secure erase. • After three failed unlocking attempts, the corresponding DCPMMs enter “exceeded” state with a system warning message, and the DCPMM unit can only be unlocked after the system is rebooted.
Page 270: Raid Configuration
OS logical drives or volumes. An introduction to RAID is available at the following Lenovo Press website: https://lenovopress.com/lp0578-lenovo-raid-introduction Detailed information about RAID management tools and resources is available at the following Lenovo Press website: https://lenovopress.com/lp0579-lenovo-raid-management-tools-and-resources Deploy the operating system Several options are available to deploy an operating system on the server.
Page 271: Back Up The Server Configuration
• Multi-server Available tools: – Lenovo XClarity Administrator http://sysmgt.lenovofiles.com/help/topic/com.lenovo.lxca.doc/compute_node_image_deployment.html – Lenovo XClarity Essentials OneCLI http://sysmgt.lenovofiles.com/help/topic/toolsctr_cli_lenovo/onecli_r_uxspi_proxy_tool.html – Lenovo XClarity Integrator deployment pack for SCCM (for Windows operating system only) https://sysmgt.lenovofiles.com/help/topic/com.lenovo.lxci_deploypack_sccm.doc/dpsccm_c_endtoend_ deploy_scenario.html • Single-server Available tools: – Lenovo XClarity Provisioning Manager “OS Installation” section in the LXPM documentation compatible with your server at https:// sysmgt.lenovofiles.com/help/topic/lxpm_frontend/lxpm_product_page.html...
Page 272: Update The Vital Product Data (Vpd)
Alternatively, you can use the s s a a v v e e command from Lenovo XClarity Essentials OneCLI to create a backup of all configuration settings. For more information about the s s a a v v e e command, see: http://sysmgt.lenovofiles.com/help/topic/toolsctr_cli_lenovo/onecli_r_save_command.html...
Page 273: Update The Asset Tag
• From Lenovo XClarity Provisioning Manager To update the asset tag from Lenovo XClarity Provisioning Manager: 1. Start the server and press F1 to display the Lenovo XClarity Provisioning Manager interface. 2. If the power-on Administrator password is required, enter the password.
Page 274 4. Update the asset tag information. • From Lenovo XClarity Essentials OneCLI Lenovo XClarity Essentials OneCLI sets the asset tag in the Lenovo XClarity Controller. Select one of the following methods to access the Lenovo XClarity Controller and set the asset tag: –...
Page 275 Example command is as follows: onecli config set SYSTEM_PROD_DATA.SysEncloseAssetTag <asset_tag> −−bmc xcc_user_id:xcc_password@xcc_external_ip 4. Reset the Lenovo XClarity Controller to the factory defaults. See “Resetting the BMC to Factory Default” section in the XCC documentation compatible with your server at https:// sysmgt.lenovofiles.com/help/topic/lxcc_frontend/lxcc_overview.html...
Page 276 ThinkSystem SR950 Setup Guide...
Page 277: Chapter 5. Resolving Installation Issues
• “Displayed system memory less than installed physical memory” on page 275 • “A Lenovo optional device that was just installed does not work” on page 276 • “Voltage planar fault is displayed in the event log” on page 276...
Page 278 Run the diagnostics tests for the hard disk drives. When you start a server and press F1, the Lenovo XClarity Provisioning Manager interface is displayed by default. You can perform hard drive diagnostics from this interface. From the Diagnostic page, click Run Diagnostic ➙...
Page 279 • Replace the affected backplane signal cable. • Replace the affected backplane. 8. Run the diagnostics tests for the hard disk drives. When you start a server and press F1, the Lenovo XClarity Provisioning Manager interface is displayed by default. You can perform hard drive diagnostics from this interface.
Page 280 • If a DIMM was disabled by a systems-management interrupt (SMI), replace the DIMM. • If a DIMM was disabled by the user or by POST, reseat the DIMM; then, run the Lenovo XClarity Provisioning Manager and enable the DIMM.
Page 281 • If the system restarts, add each of the items that you removed one at a time, restarting the system each time, until the error occurs. Replace the item for which the error occurs. • If the system does not restart, suspect the system board. Chapter 5 Resolving installation issues...
Page 282 ThinkSystem SR950 Setup Guide...
Page 283: Appendix A. Getting Help And Technical Assistance
Appendix A. Getting help and technical assistance If you need help, service, or technical assistance or just want more information about Lenovo products, you will find a wide variety of sources available from Lenovo to assist you. On the World Wide Web, up-to-date information about Lenovo systems, optional devices, services, and support are available at: http://datacentersupport.lenovo.com...
Page 284: Collecting Service Data
Collecting service data To clearly identify the root cause of a server issue or at the request of Lenovo Support, you might need collect service data that can be used for further analysis. Service data includes information such as event logs and hardware inventory.
Page 285: Contacting Support
• Lenovo XClarity Essentials OneCLI Lenovo XClarity Essentials OneCLI has inventory application to collect service data. It can run both in- band and out-of-band. When running in-band within the host operating system on the server, OneCLI can collect information about the operating system, such as the operating system event log, in addition to the hardware service data.
Page 286 ThinkSystem SR950 Setup Guide...
Page 287: Appendix B. Component Reference
Hard disk drive “Signal” connector System-board LEDs The following illustration shows the location of light path diagnostic LEDs and light path diagnostic switch on the system board. These LEDs can often identify the source of an error. © Copyright Lenovo 2017, 2021...
Page 288: Storage-Board-Assembly Connectors
LED on: An error has occurred on the System board error Complete the following steps: system board. 1. Check the Lenovo XClarity Controller event log and the system error log for information about the error. 2. Save the log if necessary, and clear the log afterward.
Page 289: I/O Tray Connectors
Figure 55. Storage-board-assembly connectors Table 221. Storage-board-assembly connectors Callout Callout “NVMe” connector Hard disk signal connector (J13) Fan signal connector (J5) Hard disk drive power connector (J2) Fan power connector (J3) “PCIe” connector “NVMe” connector “NVMe” connector I/O tray connectors The following illustration shows the internal connectors on the I/O tray (including connectors of PCIe slot 5 to 8 and the LOM connector of slot 9).
Page 290 PCIe3, x16, 75 watt connector (slot 5) TCM connector (see “Enable TPM/TCM” in the ThinkSystem SR950 Maintenance Manual PCIe3, x16, 75 watt connector (slot 6) Riser for slot 10 to 15 connectors (Riser 2) PCIe3, x8, 25 watt connector (slot 7) M.2 SATA/PCIe (Hypervisor) backplane connector...
Page 291 Power-on password override. Changing the position of this switch bypasses the power-on password check the next time the server is turned on and starts the Lenovo XClarity Provisioning Manager so that you can change or delete the power-on password. You do not have to move the switch back to the default position after the power-on password is overridden.
Page 292 PCIe3 x16 (Slot 4 or 13) 3 12 4 13 Slot 10 to 15 riser connectors There are five PCIe3 x16, full height, half length connectors and one ML2 PCIe3 x16 connector in the slot 10 to 15 riser. ThinkSystem SR950 Setup Guide...
Page 293: Storage Interposer Connectors
Figure 59. Slot 10 to 15 riser connectors Table 226. Slot 10 to 15 riser connectors Callout Callout PCIe3 x16 (Slot 10) PCIe3 x16 (Slot 13) PCIe3 x16 (Slot 11) PCIe3 x16 (Slot 14) PCIe3 x16 (Slot 12) ML2 PCIe3 x16 (Slot 15) Slot 16 to 17 riser There are two PCIe3 x8, full height, half length connectors in the slot 16 to 17 riser.
Page 294: Raid Card Connectors
RAID connector for drive backplane 2 or 5 (SAS only) Unused RAID connector for drive backplane 1 or 4 (SAS only) RAID connector for drive backplane 3 or 6 (SAS only) PCI connector to storage interposer ThinkSystem SR950 Setup Guide...
Page 295: Drive Backplane Connectors
Figure 63. RAID card connectors (type 2) Table 230. RAID card connectors (type 2) Callout Callout RAID flash power module (J14) connector RAID connector for drive backplane 1 or 4 (SAS only) RAID connector for drive backplane 2 or 5 (SAS only) PCI connector to storage interposer Drive backplane connectors The following illustration shows the internal connectors on the drive backplanes.
Page 296: Component Access
• I/O adapters 16 to 17: see “Remove an I/O adapter from slot 16 to 17” on page 297 and “Install an I/O adapter in slot 16 to 17” on page 304 Installation considerations for the Mellanox Innova™-2 Flex Open Programmable SmartNIC Review the following guidelines before installing the Mellanox Innova™-2 Flex Open Programmable SmartNIC: ThinkSystem SR950 Setup Guide...
Page 297 • If you install the Mellanox Innova™-2 Flex Open Programmable SmartNIC in the ThinkSystem SR950, the maximum supported ambient temperature for the system is 35°C. • The Mellanox Innova™-2 Flex Open Programmable SmartNIC is not supported in the following adapter slots: 1, 5, and 10.
Page 298 “Remove the I/O tray” on page 334. 2. Remove the riser for slot 1 to 4 (riser 1) to access the adapter connectors in the I/O tray. See “Remove the riser for slot 1 to 4 (riser 1)” on page 358. ThinkSystem SR950 Setup Guide...
Page 299 Complete the following steps to remove an adapter from slot 5 to 8. Watch the procedure. A video of the installation process is available: • YouTube • Youku Figure 67. Adapter removal (slot 5 to 8) Step 1. Disengage the adapter from its connector on the I/O tray and lift the adapter from the I/O tray. After you remove the adapter: If you are instructed to return the adapter, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
Page 300 PCIe adapters in slot 10 to 15 are in an I/O tray riser that is accessed from the rear of the server. After removing the I/O tray and the riser for slot 10 to 15 (riser 2), open the retention latch and remove the adapter from the riser. S002 ThinkSystem SR950 Setup Guide...
Page 301 CAUTION: The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 302 Complete the following steps to remove an adapter from slot 16 to 17. Watch the procedure. A video of the installation process is available: • YouTube • Youku Figure 70. Adapter removal (slot 16 to 17) Step 1. Open the retention latch. ThinkSystem SR950 Setup Guide...
Page 303 Step 2. Disengage the adapter from its connector on the riser and lift the adapter from the riser. After you remove the adapter: If you are instructed to return the adapter, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
Page 304 Before you Install a PCIe adapter in slot 5 to 8, make sure that there is no filler installed in the slot where you are installing the adapter. Important: You must remove the riser from the I/O tray before installing an adapter. ThinkSystem SR950 Setup Guide...
Page 305 Complete the following steps to install an adapter for slot 5 to 8. Watch the procedure. A video of the installation process is available: • YouTube • Youku Figure 72. Adapter installation (slot 5 to 8) Step 1. Align the adapter with the I/O tray slot and insert it; then, press the adapter into the I/O tray until the connector is fully seated.
Page 306 PCIe adapters in slot 10 to 15 are in an I/O tray riser that is accessed from the rear of the server. With the riser removed from the I/O tray, open the retention latch and insert the adapter in the riser; then, close the retention latch. S002 ThinkSystem SR950 Setup Guide...
Page 307 CAUTION: The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 308 Important: You must remove the riser from the I/O tray before installing an adapter. Complete the following steps to install an adapter in slots 16 or 17. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 309: Upper/Lower Compute Tray Replacement
Figure 75. Adapter installation (slot 16 to 17) Step 1. Open the retention latch. Step 2. Align the adapter with the riser slot and insert it; then, press the adapter into the riser until the connector is fully seated. Step 3. Close and lock the retention latch.
Page 310 Pull compute tray forward evenly until it stops; then, close the release levers. Step 3. Press the release tabs on either side of the tray; then, slide the tray fully forward evenly and remove it from the chassis. Attention: ThinkSystem SR950 Setup Guide...
Page 311 • Be prepared to support the full weight of the compute tray when you remove it from the chassis. • Do not use the release levers as handles to support the compute tray. Figure 77. Compute tray removal from chassis After you remove the compute tray: •...
Page 312: System Board Replacement
System boards are in the upper or lower compute tray that is accessed from the front of the server. Important: Before you return the system board, make sure that you install the CPU socket covers from the new system board. To replace a CPU socket cover: ThinkSystem SR950 Setup Guide...
Page 313 1. Take a socket cover from the CPU socket assembly on the new system board and orient it correctly above the CPU socket assembly on the removed system board. 2. Gently press down the socket cover legs to the CPU socket assembly, pressing on the edges will avoid damage to the socket pins.
Page 314 Maintenance Manual for compliance with local regulations. Install a system board Install a system board by inserting it in the compute tray, pushing it in until it locks in place, and connecting the cables. S002 ThinkSystem SR950 Setup Guide...
Page 315 CAUTION: The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 316: System Board Filler Replacement
307 and “Install the front cover” on page 322. • Update the machine type and serial number with new vital product data (VPD). Use the Lenovo XClarity Provisioning Manager to update the machine type and serial number. See “Update the machine type and serial number”...
Page 317 Figure 81. System board filler removal Step 1. Press the release clips and slide the system board filler out of the compute tray. After you remove the system board filler: • If you are instructed to return the system board filler, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
Page 318: Fan Cage Replacement
The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. ThinkSystem SR950 Setup Guide...
Page 319 “ ” on page 56 CAUTION: Make sure that all server power cords are disconnected from their power sources before performing this procedure. Before you remove an upper fan cage: 1. Remove the front cover. See “Remove the front cover” on page 322. 2.
Page 320 2. Remove the lower compute tray. See “Remove a compute tray” on page 305. Complete the following steps to remove a lower fan cage. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 321 Figure 84. Lower fan cage removal Step 1. Press the button on each compute tray release lever; then, rotate the release levers until they are perpendicular to the tray. Step 2. Press the fan cage releases at either side of the fan cage; then, pull the fan cage toward the front of the compute tray and lift the cage slightly to access the connector on the underside of the fan cage.
Page 322 Make sure that all server power cords are disconnected from their power sources before performing this procedure. Complete the following steps to install an upper fan cage: Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 323 Figure 85. Upper fan cage installation Step 1. Make sure that the area where the fan cage installs is clear and that cables are routed to allow fan cage insertion. Step 2. Make sure that the compute or storage tray release levers are open and perpendicular to the tray. Attention: To prevent damage to components, lower the fan cage straight down when inserting it in the tray.
Page 324 Make sure that all server power cords are disconnected from their power sources before performing this procedure. Complete the following steps to install a lower fan cage: Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 325 Figure 86. Lower fan cage installation Step 1. Make sure that the area where the fan cage installs is clear and that cables are routed to allow fan cage insertion. Step 2. Make sure that the compute tray release levers are open and perpendicular to the tray. Attention: To prevent damage to components, lower the fan cage straight down when inserting it in the tray.
Page 326: Front Cover Replacement
Install the front cover by sliding the cover into position and pressing until it is fully seated. Complete the following steps to install the front cover: Watch the procedure. A video of the replacement process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 327: Hard Disk Drive Replacement
Figure 88. Front cover installation Step 1. Position the cover on the front of the server. Note: Make sure that the pull tab on the operator panel, used to access the LCD system information display panel, passes through the hole for the display panel on the front cover. Step 2.
Page 328 Hard disk drive fillers can be of two types: single-bay fillers and four-bay fillers. If you remove a four-bay filler and are not installing four hard disk drives, you must install single-bay fillers in each of the empty drive bays. ThinkSystem SR950 Setup Guide...
Page 329 When replacing a hard disk drive that was previously installed, make sure that you install it in the same drive bay from which it was removed. Complete the following steps to install a hard disk drive: Watch the procedure. A video of the installation process is available: •...
Page 330 2. If the server is configured for RAID operation, you might have to reconfigure your disk arrays after you install hard disk drives. See “RAID configuration” in the ThinkSystem SR950 Setup Guide for information. Remove a hard disk drive filler Remove a hard disk drive filler by pressing the release tab and pulling the filler from the bay.
Page 331: Hard Disk Drive Backplane Replacement
Figure 92. Hard disk drive filler installation Step 1. Insert the filler in the hard disk drive in the drive bay and press it in place. Install fillers in all empty hard disk drive bays. You can use either a four-bay filler or single-bay fillers in any vacant bays.
Page 332 Grasp the backplane and pull it up and out of the upper tray. If you are not installing another hard disk drive backplane after you remove the hard disk drive backplane: • Install the fan cage. See “Install a fan cage (upper tray)” on page 317. ThinkSystem SR950 Setup Guide...
Page 333 • Install the upper compute tray or storage tray. See “Install a compute tray” on page 307 or “Install the storage tray (fully removed)” on page 377. • Install the front cover. See “Install the front cover” on page 322. If you are instructed to return the backplane, follow all packaging instructions and use any packaging materials that are provided.
Page 334 Hard disk drive backplanes in the upper compute tray or optional storage tray are accessed from the front of the server. There are several types of hard disk drive backplane. Steps that are backplane specific are noted in each procedure. S002 CAUTION: ThinkSystem SR950 Setup Guide...
Page 335 The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 336 Make sure that all server power cords are disconnected from their power sources before performing this procedure. Complete the following steps to install a hard disk drive backplane in the lower compute tray. Watch the procedure. A video of the replacement process is available: • YouTube ThinkSystem SR950 Setup Guide...
Page 337 • Youku Step 1. Connect the power and data cables to the hard disk drive backplane. See “Cable routing for drives” on page 40. Connect the power cable to the backplane. If this cable is connected to the storage interposer, you might find it easier to disconnect it from the storage interposer and then reconnect it to the storage interposer after the backplane is installed.
Page 338: I/O Tray Replacement
• Disconnect and label all cables connected to adapters in the I/O tray. Note: System identification information for the ThinkSystem SR950 server is stored in the I/O tray. If you are removing the I/O tray to replace it as part of a maintenance operation, you will need to transfer system identification information to the new I/O tray, after it is installed in the server.
Page 339 Figure 97. I/O tray removal Step 1. Press the button on each release lever; then, simultaneously rotate the release levers until they are perpendicular to the chassis. Step 2. Pull I/O tray out of the chassis. After you remove the I/O tray: •...
Page 340 See “Cable the server” on page 253. • Update the machine type and serial number with new vital product data (VPD). Use the Lenovo XClarity Provisioning Manager to update the machine type and serial number. See “Update the machine type and serial number”...
Page 341 2. Copy and unpack the OneCLI package, which also includes other required files, to the server. Make sure that you unpack the OneCLI and the required files to the same directory. 3. After you have Lenovo XClarity Essentials OneCLI in place, type the following commands to set the machine type and serial number: onecli config set SYSTEM_PROD_DATA.SysInfoProdName <m/t_model>...
Page 342 SYSTEM_PROD_DATA.SysInfoProdName <m/t_model> −−bmc xcc_user_id:xcc_password@xcc_external_ip onecli config set SYSTEM_PROD_DATA.SysInfoSerialNum <s/n> −−bmc xcc_user_id:xcc_password@xcc_external_ip 4. Reset the Lenovo XClarity Controller to the factory defaults. See “Resetting the BMC to Factory Default” section in the XCC documentation compatible with your server at https:// sysmgt.lenovofiles.com/help/topic/lxcc_frontend/lxcc_overview.html Enable TPM/TCM The server supports Trusted Platform Module (TPM), Version 1.2 or Version 2.0...
Page 343 Note: Although the setting undefined is available as a policy setting, it should not be used. • From Lenovo XClarity Essentials OneCLI Note: Please note that a Local IPMI user and password must be setup in Lenovo XClarity Controller for remote accessing to the target system.
Page 344 Physical Presence Policy is enabled with a timeout of 30 minutes. There are two ways to assert the Physical Presence: 1. If the Physical Presence Policy is enabled, you can assert Physical Presence through the Lenovo XClarity Provisioning Manager or through the Lenovo XClarity Controller.
Page 345 Set the TPM version To be able to set the TPM version, Physical Presence must be asserted. The Lenovo XClarity Provisioning Manager or the Lenovo XClarity Essentials OneCLI can be used to set the TPM version. To set the TPM version: 1.
Page 346: M.2 Backplane Replacement
The default user ID is USERID, and the default password is PASSW0RD (zero, not an uppercase o) – <ip_address> is the IP address of the BMC. For more information about the Lenovo XClarity Essentials OneCLI s s e e t t command, see: http://sysmgt.lenovofiles.com/help/topic/toolsctr_cli_lenovo/onecli_r_set_command.html M.2 backplane replacement The M.2 backplane is in the I/O tray that is accessed from the rear of the server.
Page 347 “ ” on page 56 CAUTION: Make sure that all server power cords are disconnected from their power sources before performing this procedure. Before you remove the M.2 backplane: 1. Disconnect and label all cables connected to adapters in the I/O tray; then, remove the I/O tray. See “Remove the I/O tray”...
Page 348 Before you install the M.2 backplane, install the M.2 drives. See “Install an M.2 drive” on page 347. Complete the following steps to install the M.2 backplane. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 349 Figure 100. M.2 backplane installation Step 1. Align the openings in the plastic supports at each end of the M.2 backplane with the guide pins on the system board; then, insert the backplane in the system-board connector. Step 2. Press down on the M.2 backplane to fully seat it. After you install the M.2 backplane, complete the following steps: 1.
Page 350: M.2 Drive Replacement
3. Remove the M.2 backplane from your system. See “Remove the M.2 backplane” on page 342. Complete the following steps to remove an M.2 drive. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 351 Figure 102. M.2 drive removal Step 1. Press both sides of the drive retainer and slide it away from the connector to release the M.2 drive. If your backplane has two M.2 drives, both will release when you slide the retainer. Step 2.
Page 352 • When only one drive is installed, it must be in slot 0. Figure 104. M.2 drive slots Table 233. M.2 drive slots Slot 0 Slot 1 Step 3. Secure the M.2 drives in the backplane. ThinkSystem SR950 Setup Guide...
Page 353 Figure 105. Securing the M.2 drives Attention: Make sure the two nubs on the retainer are in the small holes on the M.2 backplane when the retainer is slid forward. Slide the retainer forward (toward the connector) until you hear a soft “click” sound. After installing an M.2 drive: 1.
Page 354: Memory Air Baffle Replacement
Open the six pairs of memory module connector retaining clips that span the memory air baffle. Step 2. Slide the memory air baffle up and off of the memory module connector retaining clips; then, remove the air baffle from the compute system board. ThinkSystem SR950 Setup Guide...
Page 355 If you are instructed to return the memory air baffle, follow all packaging instructions and use any packaging materials that are provided. Install a memory air baffle Memory air baffles are in the system boards that are accessed from the front of the server. S002 CAUTION: The power-control button on the device and the power switch on the power supply do not turn off the...
Page 356 1. Install the upper system board or system board filler, if it was removed. See “Install a system board” on page 310. 2. Install the compute tray where the system board is installed. See “Install a compute tray” on page 307. 3. Install the front cover. See “Install the front cover” on page 322 ThinkSystem SR950 Setup Guide...
Page 357: Memory Module Replacement
Memory module replacement Use the following procedures to replace a memory module. Remove a memory module Memory modules are in the system boards that are accessed from the front of the server. “ ” on page 56 “ ” on page 254 “ ”...
Page 358 If you are not replacing the memory module that you removed: 1. See the ThinkSystem SR950 Memory Population Reference for the required installation order of the remaining memory modules. 2. Install a memory module filler, that was originally provided with the PHM option, in any vacant memory module connectors.
Page 359 5. Install the front cover. See “Install the front cover” on page 322 If you are instructed to return the memory module, follow all packaging instructions and use any packaging materials that are provided. Install a memory module Memory modules are in the system boards that are accessed from the front of the server. S002 CAUTION: The power-control button on the device and the power switch on the power supply do not turn off the...
Page 360 Attention: Memory modules are sensitive to static discharge and require special handling. In addition to the standard guidelines for “Handling static-sensitive devices” on page 57: • Always wear an electrostatic-discharge strap when removing or installing memory modules. Electrostatic- discharge gloves can also be used. ThinkSystem SR950 Setup Guide...
Page 361 Update the system firmware to the latest version (see https://thinksystem.lenovofiles.com/help/topic/ 7X12/maintenance_manual_firmware_updates.html b. Make sure that the firmware on all of the DCPMM units is the latest version. If not, update it to the latest version (see https://sysmgt.lenovofiles.com/help/topic/com.lenovo.lxca.doc/update_fw.html Appendix B. Component reference...
Page 362: Riser Replacement
I/O tray. See “Remove the I/O tray” on page 334. Complete the following steps to remove the riser for slot 1 to 4 (riser 1). Watch the procedure. A video of the installation process is available: ThinkSystem SR950 Setup Guide...
Page 363 • YouTube • Youku Figure 110. Riser for slot 1 to 4 (riser 1) removal Step 1. Loosen the two captive screws (items 1 in preceding figure) that secure the riser to the I/O tray board. Step 2. Lift the riser up and out of the I/O tray. After you remove the riser: •...
Page 364 I/O tray. See “Remove the I/O tray” on page 334. Complete the following steps to remove the riser for slot 10 to 15 (riser 2). Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 365 Figure 111. Riser for slot 10 to 15 (riser 2) removal Step 1. Loosen the two captive screws (items 1 in preceding figure) that secure the riser to the I/O tray board. Step 2. Lift the riser up and out of the I/O tray. After you remove the riser: •...
Page 366 The riser for adapter slot 16 to 17 is in the I/O tray that is accessed from the rear of the server. After removing the I/O tray, loosen the captive screw that secures the riser to the I/O tray; then, remove the riser from the I/O tray. S002 ThinkSystem SR950 Setup Guide...
Page 367 CAUTION: The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 368 4. If any of the adapters in the riser have internal cables, make sure that they are connected before installing the riser in the I/O tray. Complete the following steps to install the riser for slot 1 to 4. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 369 Figure 114. Riser for slot 1 to 4 (riser 1) installation Step 1. Align the riser with the I/O tray and insert it; then, press the riser into the I/O tray until the connector is fully seated. Step 2. Tighten the two captive screws (items 4 in preceding figure) that secure the riser to the I/O tray board.
Page 370 Align the riser with the I/O tray and insert it; then, press the riser into the I/O tray until the connector is fully seated. Step 2. Tighten the two captive screws (items 4 in preceding figure) that secure the riser to the I/O tray board. ThinkSystem SR950 Setup Guide...
Page 371 If you have no other operations to perform on the I/O tray after installing the riser for slot 10 to 15, install the I/ O tray in the chassis and connect all cables. See “Install the I/O tray” on page 335. Install the riser bracket for slot 14 to 15 (riser 2) The riser bracket for slot 14 to 15 is attached to the slot 10 to 15 I/O tray riser that is accessed from the rear of the server.
Page 372 4. If any of the adapters in the riser have internal cables, make sure that they are connected before installing the riser in the I/O tray. Complete the following steps to install the riser for slot 16 to 17. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 373: Storage Interposer Replacement
Figure 117. Riser for slot 16 to 17 installation Step 1. Align the riser with the I/O tray, making sure that the sides of the riser fit into the guides on the I/O tray, and insert the riser; then, press the riser into the I/O tray until the connector is fully seated. Step 2.
Page 374 RAID card upward. (Leave the three cables connected to the RAID card.) Step 3. Remove the screw securing the storage interposer in place. Step 4. Slide the storage interposer to the left and remove it from the tray. ThinkSystem SR950 Setup Guide...
Page 375 If you are instructed to return the storage interposer, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. Remove a storage interposer (lower tray) The lower storage interposer is in the lower compute tray that is accessed from the front of the server. After removing the lower compute tray and fan cage, disconnect the RAID card from the storage interposer and lift it out of the way;...
Page 376 The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. “ ” on page 56 CAUTION: ThinkSystem SR950 Setup Guide...
Page 377 Make sure that all server power cords are disconnected from their power sources before performing this procedure. Complete the following steps to install an upper tray storage interposer: Watch the procedure. A video of the installation process is available: • YouTube •...
Page 378 Rotate the RAID card down and align it with the connector on the storage interposer; then, insert the RAID card in the storage interposer connector. Step 4. Connect the power and data cables to the storage interposer. After you have installed the lower storage interposer: ThinkSystem SR950 Setup Guide...
Page 379: Storage Tray Replacement
1. Install the lower fan cage. See “Install a fan cage (lower tray)” on page 320. 2. Install the lower compute tray or place it in the normal operating position; then, install the front cover. See “Install a compute tray” on page 307 and “Install the front cover” on page 322. Storage tray replacement The storage tray is in the upper bay that is accessed from the front of the server.
Page 380 • Be prepared to support the full weight of the storage tray when you remove it from the chassis. • Do not use the release levers as handles to support the storage tray. Figure 123. Storage tray removal from chassis ThinkSystem SR950 Setup Guide...
Page 381 After you remove the storage tray: • If you are instructed to return the storage tray, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. Install the storage tray (fully removed) Install the storage tray when it is fully removed by inserting it in the front of the chassis, pushing it in until it stops, and closing the release levers.
Page 382 Rotate the storage tray release levers until they lock, fully closed. If you are done performing installation or maintenance procedures at the front of the chassis, install the front cover. See “Install the front cover” on page 322. ThinkSystem SR950 Setup Guide...
Page 383: Index
11, 13, 15, 17–18 installing Configuration - ThinkSystem SR950 replacing configure the firmware adapter (slot 1 to 4) connector installing 231, 299 battery removing drive backplane adapter (slot 10 to 15)
Page 384 (8 CPUs) installing 227, 322 install server in a rack removing 211, 322 installation replacing guidelines front operator panel installation guidelines controls and LEDs installation order front panel USB port DCPMM 62, 176 cable routing ThinkSystem SR950 Setup Guide...
Page 385 (riser slot 14 to 15) 241, 367 IPv4 host name compute tray default DIMM IPv6 link local address DIMM air baffle default DIMM filler fan cage (lower) fan cage (upper) filler (DIMM) filler (memory module) © Copyright Lenovo 2017, 2021...
Page 386 (8 CPUs) Memory mode DCPMM installation order (2 CPUs) DCPMM installation order (4 CPUs) DCPMM installation order (6 CPUs) DCPMM installation order (8 CPUs) particulate contamination memory module parts list ThinkSystem SR950 Setup Guide...
Page 387 I/O tray serial number left riser server LOM adapter (slot 9) identification M.2 backplane power off M.2 drive power on memory air baffle rear view memory module server components removing server setup memory module filler © Copyright Lenovo 2017, 2021...
Page 388 System configuration - ThinkSystem SR950 service and support system reliability guidelines before you call system-board connectors hardware system-board LEDs software service data service label software service and support telephone numbers solid state drive activity LED solid state drive status LED...

Lenovo ThinkSystem SR950 Setup Manual

Chapter 1. Introduction

Chapter 2. Server Components

Chapter 3. Server Hardware Setup

Chapter 4. System Configuration

Chapter 5. Resolving Installation Issues

Appendix A. Getting Help and Technical Assistance

Appendix B. Component Reference

Quick Links

Related Manuals for Lenovo ThinkSystem SR950

Summary of Contents for Lenovo ThinkSystem SR950

Table of Contents