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Dell EMC PowerEdge R940 Installation And Service Manual
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Dell EMC PowerEdge R940 Installation And Service Manual

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Dell EMC PowerEdge R940
Installation and Service Manual
Regulatory Model: E41S Series
Regulatory Type: E41S001

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Summary of Contents for Dell EMC PowerEdge R940

  • Page 1 Dell EMC PowerEdge R940 Installation and Service Manual Regulatory Model: E41S Series Regulatory Type: E41S001...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2017 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

  • Page 3: Table Of Contents

    Contents 1 PowerEdge R940 overview..........................8 Front view of the system..............................8 Left control panel view...............................10 Right control panel..............................13 Back view of the system..............................14 NIC indicator codes..............................15 Power supply unit indicator codes..........................16 Hard drive indicator codes...............................18 LCD panel..................................19 Viewing Home screen..............................
  • Page 4 Viewing System Setup.............................. 36 System Setup details..............................37 System BIOS................................37 iDRAC Settings utility..............................58 Device Settings................................58 Dell Lifecycle Controller..............................58 Embedded system management..........................58 Boot Manager.................................. 58 Viewing Boot Manager..............................58 Boot Manager main menu............................59 One-shot BIOS boot menu............................59 System Utilities................................59...
  • Page 5 Removing the fan tray............................... 75 Installing the fan tray..............................76 Intrusion switch................................77 Removing an intrusion switch...........................77 Installing an intrusion switch............................. 79 Hard drives..................................80 Removing a hard drive blank............................ 80 Installing a hard drive blank............................81 Removing a hard drive............................... 81 Installing a hard drive..............................
  • Page 6 7 Using system diagnostics........................... 152 Dell Embedded System Diagnostics..........................152 Running the Embedded System Diagnostics from Boot Manager..............152 Running the Embedded System Diagnostics from the Dell Lifecycle Controller..........152 System diagnostic controls............................. 153 8 Jumpers and connectors ........................... 154 System board jumpers and connectors........................155 System board jumper settings............................
  • Page 7 9 Getting help............................... 160 Contacting Dell................................160 Documentation feedback.............................. 160 Accessing system information by using QRL......................160 Quick Resource Locator for PowerEdge R940 system..................161 Receiving automated support with SupportAssist ....................161 Contents...

  • Page 8: Poweredge R940 Overview

    PowerEdge R940 overview The PowerEdge R940 is a 3U rack system, which is available in the following configurations: Table 1. PowerEdge R940 configurations Configurations Specifications 8-drive bay system (without PEM) • Two Intel Xeon scalable family processors • 24 DIMM slots supporting up to 3 TB of memory •...
  • Page 9 Figure 1. Front view of 24 x 2.5 inch hard drive system Figure 2. Front view of 8 x 2.5 inch hard drive system Table 2. Features available on the front of the system Item Indicator, button, or Icon Description connector Left control panel Contains the system health and system ID, status LED, and optional...

  • Page 10: Left Control Panel View

    BIOS, and networking parameters. You can also launch the virtual Keyboard, Video, and Mouse (KVM) viewer and virtual Kernel based Virtual Machine (KVM), on a supported mobile device. For more information, see the Integrated Dell Remote Access Controller User's Guide at Dell.com/idracmanuals. Status LED indicators...
  • Page 11 Icon Description Condition Corrective action • Run the appropriate Online Diagnostics test. Restart the system and run embedded diagnostics (ePSA). • If the drives are configured in a RAID array, restart the system, and enter the host adapter configuration utility program. Temperature The indicator turns solid amber if the Ensure that none of the following conditions exist:...
  • Page 12 Indicates that the system is experiencing a fault. Check the System Event Log or the LCD panel, if available on the bezel, for specific error message. For more information about error messages, see the Dell Event and Error Messages Reference Guide at Dell.com/ openmanagemanuals >...

  • Page 13: Right Control Panel

    The iDRAC Direct port is micro USB 2.0-compliant. This port enables iDRAC Direct port you to access the iDRAC Direct features. For more information, see the iDRAC User’s Guide at Dell.com/idracmanuals. The USB 3.0 ports are 9-pin, USB 3.0-compliant. These ports enable USB ports you to connect USB devices to the system.

  • Page 14: Back View Of The System

    Table 8. iDRAC Direct LED indicator codes iDRAC Direct LED Condition indicator code Solid green for two seconds Indicates that the laptop or tablet is connected. Flashing green (on for two Indicates that the laptop or tablet connected is recognized. seconds and off for two seconds) Turns off...

  • Page 15: Nic Indicator Codes

    Technical specifications section. Enables you to remotely access iDRAC. For more information, see the iDRAC9 Enterprise port iDRAC User’s Guide at Dell.com/idracmanuals. The USB ports are 9-pin and 3.0-compliant. These ports enable you to USB port (2) connect USB devices to the system.

  • Page 16: Power Supply Unit Indicator Codes

    Power supply unit indicator codes AC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator and DC PSUs have an LED that serves as an indicator. The indicator shows whether power is present or a power fault has occurred. Figure 9.
  • Page 17 Figure 10. DC PSU status indicator DC PSU status indicator Table 12. DC PSU status indicator codes Power indicator codes Condition Green A valid power source is connected to the PSU and the PSU is operational. Blinking amber Indicates a problem with the PSU. Not illuminated Power is not connected to the PSU.

  • Page 18: Hard Drive Indicator Codes

    Hard drive indicator codes Each hard drive carrier has an activity LED indicator and a status LED indicator. The indicators provide information about the current status of the hard drive. The activity LED indicator indicates whether the hard drive is currently in use or not. The status LED indicator indicates the power condition of the drive.

  • Page 19: Lcd Panel

    The LCD panel can be used to configure or view the system’s iDRAC IP address. For more information about error messages, see the Dell Event and Error Messages Reference Guide at Dell.com/openmanagemanuals > OpenManage software. The LCD panel is available only on the optional LCD bezel. The optional LCD bezel is hot pluggable.

  • Page 20: Setup Menu

    Express Service Code and Service Tag. Alternatively, the information may be on a sticker on the chassis of the system. The mini Enterprise Service Tag (EST) is found on the back of the system. This information is used by Dell to route support calls to the appropriate personnel.
  • Page 21 Figure 13. Locating Service Tag of your system information tag (top view) information tag (back view) OpenManage Mobile (OMM) label iDRAC MAC address and iDRAC secure password label Service Tag PowerEdge R940 overview...

  • Page 22: Documentation Resources

    Managing your system For information about systems management Dell.com/openmanagemanuals software offered by Dell, see the Dell OpenManage Systems Management Overview Guide. For information about setting up, using, and Dell.com/openmanagemanuals troubleshooting OpenManage, see the Dell OpenManage Server Administrator User’s Guide.
  • Page 23 Working with the Dell For information about understanding the features Dell.com/storagecontrollermanuals PowerEdge RAID controllers of the Dell PowerEdge RAID controllers (PERC), Software RAID controllers, or BOSS card and deploying the cards, see the Storage controller documentation. Understanding event and error For information about checking the event and error Dell.com/openmanagemanuals...

  • Page 24: Technical Specifications

    Technical specifications The technical and environmental specifications of your system are outlined in this section. Topics: • System dimensions • System weight • Processor specifications • PSU specifications • System battery specifications • Expansion bus specifications • Memory specifications • Storage controller specifications •...

  • Page 25: System Weight

    Figure 14. System dimensions of PowerEdge R940 system Table 16. System dimensions of PowerEdge R940 system System Za (with Za (without bezel) bezel) PowerEdge R940 482.0 mm 434.0 mm 130.3 mm 35.0 mm 22.0 mm 726.2 mm 777.046 mm (18.9 inches) (17.08 (5.13 (1.37...

  • Page 26: Psu Specifications

    PSU specifications The PowerEdge R940 system supports up to two AC or DC power supply units (PSUs). Table 18. PSU specifications Class Heat dissipation Frequency Voltage Current (maximum) 1100 W AC Platinum 4100 BTU/hr 50/60 Hz 100–240 V AC, autoranging 12 A–6.5 A 1100 W DC 4416 BTU/hr...

  • Page 27: Memory Specifications

    Riser PCIe slot on the Processor PCIe slots on riser PCIe slots Link width Slot width expansion card riser connection (Height) on riser (length) Slot 11 Processor 4 full height 3/4 length Riser 3 (IO_RISER3) Slot 12 Processor 4 full height half length Slot 13 Processor 4...

  • Page 28: Nic Ports

    • Two USB 3.0-compliant ports on the front panel • Two USB 3.0-compliant ports on the back panel • One USB 3.0-compliant internal port NIC ports The PowerEdge R940 system supports up to four NDC ports on the back panel, which are available in the following configurations: •...

  • Page 29: Environmental Specifications

    Environmental specifications NOTE: For additional information about environmental measurements for specific system configurations, see Dell.com/ environmental_datasheets. Table 22. Temperature specifications Temperature Specifications Storage –40°C to 65°C (–40°F to 149°F) Continuous operation (for altitude less than 950 m or 3117 10°C to 35°C (50°F to 95°F) with no direct sunlight on the equipment.

  • Page 30: Particulate And Gaseous Contamination Specifications

    Table 27. Operating temperature de-rating specifications Operating temperature de-rating Specifications Up to 35°C (95°F) Maximum temperature is reduced by 1°C/300 m (1°F/547 ft) above 950 m (3,117 ft). 35°C to 40°C (95°F to 104°F) Maximum temperature is reduced by 1°C/175 m (1°F/319 ft) above 950 m (3,117 ft).

  • Page 31: Standard Operating Temperature

    150 W/8 core or higher wattage processor [Thermal Design Power (TDP)>165 W] is not supported. • Redundant power supply unit is required. • Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported. • NVMe drives are not supported. •...

  • Page 32: Thermal Restrictions

    Thermal restrictions Following table lists the configuration required for efficient cooling: Table 32. Thermal restriction for efficient cooling Configuration Number of Heatsink Processor blank DIMM Fresh air processors blanks Eight 2.5 inch Two heat sinks for CPU < Not required eight standard hard drive 165W...

  • Page 33: Initial System Setup And Configuration

    The Integrated Dell Remote Access Controller (iDRAC) is designed to make system administrators more productive and improve the overall availability of Dell systems. iDRAC alerts administrators to system issues, helps them perform remote system management, and reduces the need for physical access to the system.

  • Page 34: Log In To Idrac

    Ensure that you change the default user name and password after setting up the iDRAC IP address. For more information about logging in to the iDRAC and iDRAC licenses, see the latest Integrated Dell Remote Access Controller User's Guide at Dell.com/idracmanuals.

  • Page 35: Downloading Drivers And Firmware

    Using Dell OpenManage Deployment Toolkit (DTK) Dell.com/openmanagemanuals Downloading drivers and firmware Dell recommends that you download and install the latest BIOS, drivers, and systems management firmware on your system. Prerequisites Ensure that you clear the web browser cache before downloading the drivers and firmware.

  • Page 36: Pre-Operating System Management Applications

    System Setup By using the System Setup screen, you can configure the BIOS settings, iDRAC settings, and device settings of your system. These settings have already been pre-configured per solution requirements. Contact Dell EMC before you change these settings. NOTE: Help text for the selected field is displayed in the graphical browser by default.

  • Page 37: System Setup Details

    The iDRAC settings utility is an interface to set up and configure the iDRAC parameters by using UEFI (Unified Extensible Firmware Interface). You can enable or disable various iDRAC parameters by using the iDRAC settings utility. For more information about this utility, see Integrated Dell Remote Access Controller User’s Guide at Dell.com/idracmanuals.
  • Page 38 Option Description Network Settings Specifies options to manage the UEFI network settings and boot protocols. Legacy network settings are managed from the Device Settings menu. Integrated Devices Specifies options to manage integrated device controllers and ports, specifies related features and options. Serial Specifies options to manage the serial ports, its related features and options.
  • Page 39 Option Description System Specifies the name of the system manufacturer. Manufacturer System Specifies the contact information of the system manufacturer. Manufacturer Contact Information System CPLD Specifies the current version of the system complex programmable logic device (CPLD) firmware. Version UEFI Compliance Specifies the UEFI compliance level of the system firmware.
  • Page 40 Option Description NOTE: Dell recommends Optimizer Mode for the Memory Operating Mode. NOTE: The Fault Resilient Mode option establishes an area of memory that is fault resilient. This mode can be used by an operating system that supports the feature to load critical applications or enables the operating system kernel to maximize system availability.
  • Page 41 This option can only be enabled if the operating system supports it. It is set to Disabled by default. X2APIC Mode Enables or disables the X2APIC mode. This option is set to Disabled by default. Dell Controlled Controls the turbo engagement. Enable this option only when System Profile is set to Performance. Turbo NOTE: Depending on the number of installed CPUs, there might be up to four processor listings.
  • Page 42 SATA Settings You can use the SATA Settings screen to view the SATA settings of SATA devices and enable SATA and PCIe NVMe RAID mode on your system. Viewing SATA Settings To view the SATA Settings screen, perform the following steps: Turn on, or restart your system.
  • Page 43 Option Description Option Description Capacity Specifies the total capacity of the hard drive. This field is undefined for removable media devices such as optical drives. Port C Sets the drive type of the selected device. For the Embedded SATA settings in ATA mode, set this field to Auto to enable BIOS support.
  • Page 44 NVMe Settings details The NVMe Settings screen details are explained as follows: Option Description NVMe Mode Enables you to set the NVMe mode. This option is set to RAID by default. Boot Settings You can use the Boot Settings screen to set the boot mode to either BIOS or UEFI. It also enables you to specify the boot order. •...
  • Page 45 Operating systems must be UEFI-compatible to be installed from the UEFI boot mode. DOS and 32-bit operating systems do not support UEFI and can only be installed from the BIOS boot mode. NOTE: For the latest information about supported operating systems, go to Dell.com/ossupport. Changing boot order About this task You may have to change the boot order if you want to boot from a USB key.
  • Page 46 Network Settings You can use the Network Settings screen to modify UEFI PXE, iSCSI, and HTTP boot settings. The network settings option is available only in the UEFI mode. NOTE: The BIOS does not control network settings in the BIOS mode. For the BIOS boot mode, the optional Boot ROM of the network controllers handles the network settings.
  • Page 47 NOTE: If your operating system begins to load before you press F2, wait for the system to finish booting, and then restart your system and try again. On the System Setup Main Menu screen, click System BIOS. On the System BIOS screen, click Network Settings. On the Network Settings screen, click UEFI iSCSI Settings.
  • Page 48 Option Description NOTE: Selecting Only Back Ports On and All Ports Off disables the USB management port and also restricts access to the iDRAC features. iDRAC Direct USB The iDRAC Direct USB port is managed by iDRAC exclusively with no host visibility. This option is set to ON or Port OFF.
  • Page 49 Option Description Option Description Enables or disables or only the boot driver is disabled Slot 4 for the PCIe slot 4. This option is set to Enabled by default. Enables or disables or only the boot driver is disabled Slot 5 for the PCIe slot 5.
  • Page 50 Serial Communication details The Serial Communication screen details are explained as follows: Option Description Serial Selects serial communication devices (Serial Device 1 and Serial Device 2) in BIOS. BIOS console redirection can Communication also be enabled, and the port address can be specified. This option is set to Auto by default. Enables the COM port or Console Redirection options.
  • Page 51 You can only change the rest of the options if the mode is set to Custom.This option is set to Performance Per Watt Optimized (DAPC) by default. DAPC is Dell Active Power Controller. NOTE: All the parameters on the system profile setting screen are available only when the System Profile option is set to Custom.
  • Page 52 Option Description The CPU uses the setting to manipulate the internal behavior of the processor and determines whether to target higher performance or better power savings. Number of Turbo NOTE: If there are four processors installed in the system, you will see an entry for Number of Turbo Boot Enabled Cores Boost Enabled Cores for Processor 4.
  • Page 53 Option Description NOTE: BIOS update requires HECI devices to be operational and DUP updates require IPMI interface to be operational. This setting needs to be set to Enabled to avoid updating errors. Intel AES-NI Improves the speed of applications by performing encryption and decryption by using the Advanced Encryption Standard Instruction Set (AES-NI).
  • Page 54 Option Description Options Description User Mode In User Mode, PK must be installed, and BIOS performs signature verification on programmatic attempts to update policy objects. The BIOS allows unauthenticated programmatic transitions between modes. Audit Mode In Audit mode, PK is not present. The BIOS does not authenticate programmatic updates to the policy objects, and transitions between modes.
  • Page 55 A message prompts you to reenter the setup password. Reenter the setup password, and click OK. Press Esc to return to the System BIOS screen. Press Esc again. A message prompts you to save the changes. NOTE: Password protection does not take effect until the system reboots. Using your system password to secure your system About this task If you have assigned a setup password, the system accepts your setup password as an alternate system password.
  • Page 56 If you do not type the correct password in three attempts, the system displays the following message: Invalid Password! Number of unsuccessful password attempts: <x> System Halted! Must power down. Password Invalid. Number of unsuccessful password attempts: <x> Maximum number of password attempts exceeded.System halted.
  • Page 57 UEFI boot mode. You cannot set the option to Enabled if UEFI Secure Boot mode is enabled. Dell Wyse P25/P45 Enables or disables the Dell Wyse P25/P45 BIOS Access. This option is set to Enabled by default. BIOS Access Power Cycle Enables or disables the Power Cycle Request.

  • Page 58: Idrac Settings Utility

    Dell Lifecycle Controller Dell Lifecycle Controller (LC) provides advanced embedded systems management capabilities including system deployment, configuration, update, maintenance, and diagnosis. LC is delivered as part of the iDRAC out-of-band solution and Dell system embedded Unified Extensible Firmware Interface (UEFI) applications.

  • Page 59: Boot Manager Main Menu

    Launch System Enables you to access System Setup. Setup Launch Lifecycle Exits the Boot Manager and invokes the Dell Lifecycle Controller program. Controller System Utilities Enables you to launch System Utilities menu such as System Diagnostics and UEFI shell. One-shot BIOS boot menu One-shot BIOS boot menu enables you to select a boot device to boot from.

  • Page 60: Installing And Removing System Components

    Installing and removing system components This section provides information about installing and removing the PowerEdge R940 components. Topics: • Safety instructions • Before working inside your system • After working inside your system • Recommended tools • Front bezel (optional) •...

  • Page 61: Before Working Inside Your System

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product.

  • Page 62: Removing The Optional Front Bezel

    Removing the optional front bezel Prerequisites Follow the safety guidelines listed in Safety instructions. Steps Unlock the bezel by using the bezel key. Press the release button, and pull the left end of the bezel. Unhook the right end, and remove the bezel. Figure 15.

  • Page 63: System Cover

    Figure 16. Installing the optional front bezel with the LCD panel System cover System cover provides security for the entire system and also helps in maintaining proper air flow inside the system. Removing the system cover Prerequisites Follow the safety guidelines listed in Safety instructions.

  • Page 64: Installing The System Cover

    Figure 17. Removing the system cover Related links Installing the system cover Installing the system cover Prerequisites Follow the safety guidelines listed in Safety instructions. Ensure that all internal cables are routed correctly and connected, and no tools or extra parts are left inside the system. Steps Align the tabs on the system cover with the guide slots on the system.

  • Page 65: Inside The System

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product.
  • Page 66 Figure 19. Inside the system — Two processor system hard drive/SSD backplane with expander board cooling fan (8) heat sink (CPU1) storage controller card network daughter card riser system board heat sink (CPU2) memory module (24) information tag Installing and removing system components...

  • Page 67: Air Shroud

    Figure 20. Inside the system — Four processor system with processor expansion module (PEM) hard drive/SSD backplane with expander board cooling fan (8) air shroud heat sink (CPU3) left expansion card riser storage controller card network daughter card riser system board processor expansion module (PEM) right expansion card riser heat sink (CPU4)
  • Page 68 Steps To remove the air shroud from a two processor configuration system, hold the shroud at both ends and lift it out of the system. Figure 21. Removing the air shroud — Two processor system To remove the air shroud from a four processor configuration system: Remove the expansion card riser.

  • Page 69: Installing The Air Shroud

    Figure 22. Removing the air shroud — Four processor system Next steps If applicable, install the air shroud. Related links Installing the air shroud Installing the air shroud Prerequisites Follow the safety guidelines listed in Safety instructions. Steps To install the air shroud in a two processor configuration system: Lower the air shroud into the system until it is firmly seated.
  • Page 70 Figure 23. Installing the air shroud — Two processor system To install the air shroud in a four processor configuration system: Align the slots on the air shroud with the tabs on the processor expansion module (PEM) handle. b Lower the air shroud into the system until it is firmly seated. When firmly seated, the memory socket numbers marked on the air shroud align with the memory sockets on the PEM.

  • Page 71: Cooling Fans

    Figure 24. Installing the air shroud — Four processor system Next steps Follow the procedure listed in After working inside your system. Cooling fans The cooling fans are integrated into the system to dissipate the heat generated by the functioning of the system. These fans provide cooling for the processors, expansion cards, and memory modules.

  • Page 72: Installing The Cooling Fan

    Figure 25. Removing the cooling fan Next steps If applicable, install the cooling fan. Related links Installing the cooling fan Installing the cooling fan Prerequisites Follow the safety guidelines listed in Safety instructions. WARNING: Do not drop the fan into the fan cage while removing or installing the fan as this may cause damage to the connectors on the fan tray.

  • Page 73: Fan Cage

    Figure 26. Installing the cooling fan Next steps Install the system cover. Fan cage Removing the fan cage Prerequisites Follow the safety guidelines listed in Safety instructions. Follow the procedure listed in Before working inside your system. Steps Slide the fan cage locks in the direction of the arrow indicated on the locks. Hold the cage handle and lift the cage out of the fan tray.

  • Page 74: Installing The Fan Cage

    Figure 27. Removing the fan cage Next steps If applicable, install the fan cage. Related links Installing the fan cage Installing the fan cage Prerequisites Follow the safety guidelines listed in Safety instructions. Steps Holding the cage handles, lower the cage into the fan tray. Lower the cage handles until the handles lock into place.

  • Page 75: Removing The Fan Tray

    Figure 28. Installing the fan cage Next steps Follow the procedure listed in After working inside your system. Removing the fan tray Prerequisites Follow the safety guidelines listed in Safety instructions. Follow the procedure listed in Before working inside your system.

  • Page 76: Installing The Fan Tray

    Figure 29. Removing the fan tray Next steps If applicable, install the fan tray. Related links Removing the air shroud Removing the fan cage Removing the expansion card riser Installing the fan tray Installing the fan tray Prerequisites Follow the safety guidelines listed in Safety instructions.

  • Page 77: Intrusion Switch

    Figure 30. Installing the fan tray Next steps Route the fan power cables and the backplane cables through the cable clips on the fan tray and connect the cables to the connectors on the system board. If applicable, lower the PEM by using PEM handle until the PEM clicks in place. If removed, install the expansion card risers.
  • Page 78 Follow the procedure listed in Before working inside your system. Remove the fan cage. Remove the air shroud. If applicable, remove the expansion card risers If applicable, remove the PEM. Press the blue release tabs on the fan tray and lower the sides of the tray. Disconnect the cable connected to the intrusion switch connector (INTRUSION) on the system board.

  • Page 79: Installing An Intrusion Switch

    Installing an intrusion switch Prerequisites Follow the safety guidelines listed in Safety instructions. Steps Slide the intrusion switch into the intrusion switch slot. Route the cables through the cable routing hooks on the side of the system. Lower the cable management bracket into the system. Press the bracket and insert the tabs on the bracket into the slots on the right side of the system.

  • Page 80: Hard Drives

    Related links Installing the expansion card riser Installing the air shroud Installing the PEM Hard drives Hard drives are supplied in hot swappable hard drive carriers that fit in the hard drive slots. CAUTION: Before attempting to remove or install a hard drive while the system is running, see the documentation for the storage controller card to ensure that the host adapter is configured correctly.

  • Page 81: Installing A Hard Drive Blank

    Installing a hard drive blank Prerequisites Follow the safety guidelines listed in Safety instructions. CAUTION: Mixing hard drive blanks from previous generations of PowerEdge servers is not supported. Steps Insert the hard drive blank into the hard drive slot, and push until the release button clicks into place. Figure 34.

  • Page 82: Installing A Hard Drive

    Figure 35. Removing a hard drive Next steps Install a hard drive. If you are not replacing the hard drive immediately, insert a hard drive blank in the empty hard drive slot to maintain proper system cooling. Related links Removing the optional front bezel Installing a hard drive Installing a hard drive Prerequisites...

  • Page 83: Removing The Hard Drive From The Hard Drive Carrier

    Steps Press the release button on the front of the hard drive to open the release handle. Insert the hard drive into the hard drive slot and slide until the hard drive connects with the backplane. Close the hard drive release handle to lock the hard drive in place. Figure 36.

  • Page 84: Installing A Hard Drive Into The Hard Drive Carrier

    Figure 37. Removing the hard drive from the hard drive carrier Next steps If applicable, install the hard drive into the hard drive carrier. Related links Installing a hard drive into the hard drive carrier Installing a hard drive into the hard drive carrier Prerequisites Follow the safety guidelines listed in Safety...

  • Page 85: Hard Drive Backplane

    Figure 38. Installing a hard drive into the hard drive carrier Hard drive backplane Depending on the configuration, your system supports the following backplanes: • 2.5 inch (x8) SAS/SATA backplane • 2.5 inch (x24) SAS/SATA backplane Hard drive backplane connectors Figure 39.

  • Page 86: Removing Hard Drive Backplane

    power connector (J_BP_PWR_A) signal connector (J_BP_SIG) power connector (J_BP_PWR_B) Figure 40. Connectors on the expander board SAS connector (BP SAS B0) SAS connector (BP SAS A0) SAS connector (BP SAS A) SAS connector (BP SAS B) SAS connector (BP SAS C) SAS connector (BP SAS A1) SAS connector (BP SAS B1) Figure 41.
  • Page 87 Follow the safety guidelines listed in Safety instructions. Follow the procedure listed in Before working inside your system. If installed, remove the front bezel. Remove the hard drives/SSDs. Remove the fan cage. Steps To remove the 2.5 inch (x24) hard drive backplane: Disconnect all the cables connected to the hard drive backplane and expander board.

  • Page 88: Installing Hard Drive Backplane

    Figure 43. Removing the 2.5 inch (x8) hard drive backplane Next steps Install the hard drive backplane. Related links Removing the optional front bezel Removing a hard drive Removing the fan cage Installing hard drive backplane Installing hard drive backplane Prerequisites Follow the safety guidelines listed in Safety...
  • Page 89 Figure 44. Installing the 2.5 inch (x24) hard drive backplane To install the 2.5 inch (x8) hard drive backplane: Align the hooks on the system with the slots on the hard drive backplane. b Lower the backplane into the system until the hooks on the system engage with the slots on the backplane. Installing and removing system components...
  • Page 90 Figure 45. Installing the 2.5 inch (x8) hard drive backplane Next steps Connect all the cables to the hard drive backplane. Install the fan cage. Install the hard drives/SSDs. If removed, install the front bezel. Follow the procedure listed in After working inside your system.

  • Page 91: Cable Routing

    Cable routing Figure 46. Cable routing – 8 x 2.5 inch hard drive backplane 8 x 2.5 inch hard drive backplane backplane power cable backplane signal cable system board Installing and removing system components...
  • Page 92 Figure 47. Cable routing – 8 x 2.5 inch hard drive backplane with PERC 8 x 2.5 inch hard drive backplane backplane power cable SAS cable backplane signal cable system board cable management bracket storage controller card (slot 1) Installing and removing system components...
  • Page 93 Figure 48. Cable routing – 24 x 2.5 inch hard drive backplane 24 x 2.5 inch hard drive backplane with expander board backplane power cable A backplane signal cable system board backplane power cable B Installing and removing system components...
  • Page 94 Figure 49. Cable routing – 24 x 2.5 inch hard drive backplane with PERC expander board SAS cable 24 x 2.5 inch hard drive backplane backplane power cable A backplane signal cable system board cable management bracket (left) storage controller card (slot 1) storage controller card (slot 6) cable management bracket (right) backplane power cable B...

  • Page 95: System Memory

    Figure 50. Cable routing – 24 x 2.5 inch hard drive backplane with NVMe cards 24 x 2.5 inch hard drive backplane with expander board backplane power cable A PCIe cable backplane signal cable system board expansion card riser (left) NVMe card (slot 8) expansion card riser (right) NVMe card (slot 12)
  • Page 96 Figure 51. Memory socket location Installing and removing system components...

  • Page 97: General Memory Module Installation Guidelines

    Figure 52. Memory socket location on the processor expansion module Memory channels are organized as follows: Table 38. Memory channels Proces Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Proces Slots A1 and A7 Slots A2 and A8 Slots A3 and A9 Slots A4 and A10 Slots A5 and A11...

  • Page 98: Mode-Specific Guidelines

    • Up to two LRDIMMs can be populated per channel regardless of rank count. • If memory modules with different speeds are installed, they will operate at the speed of the slowest installed memory module(s) or slower depending on the system DIMM configuration. •...

  • Page 99: Removing A Memory Module

    used to mirror the active memory modules. In the event of an uncorrectable error, the system switches over to the mirrored copy. This ensures Single Device Data Correction (SDDC) and multi-bit protection. The installation guidelines for memory modules are as follows: •...

  • Page 100: Installing A Memory Module

    Steps Locate the appropriate memory module socket. CAUTION: Handle each memory module only by the card edges, ensuring not to touch the middle of the memory module or metallic contacts. Push the ejectors outward on both ends of the memory module socket to release the memory module from the socket. Lift and remove the memory module from the system.

  • Page 101: Processors And Heat Sinks

    NOTE: The memory module socket has an alignment key that enables you to install the memory module in the socket in only one orientation. Press the memory module with your thumbs until the socket levers firmly click into place. Figure 54. Installing a memory module Next steps If applicable, install the air shroud.

  • Page 102: Removing The Processor From The Processor And Heat Sink Module

    Remove the air shroud. If installed, remove the expansion card risers and lift the PEM to the upright position. Steps Using a Torx #T30 screwdriver, loosen the screws on the heat sink. NOTE: Ensure that you loosen one screw before moving on to the next screw. Pushing both retention clips simultaneously, lift the processor and heat sink module (PHM) out of the system.
  • Page 103 Steps Place the heat sink with the processor side facing up. Insert a flat blade screwdriver into the release slot marked with a yellow label. Twist (do not pry) the screwdriver to break the thermal paste seal. Push the retaining clips on the processor bracket to unlock the bracket from the heat sink. Figure 56.

  • Page 104: Installing The Processor Into A Processor And Heat Sink Module

    Related links Removing the air shroud Removing a processor and heat sink module Installing the processor into a processor and heat sink module Prerequisites Follow the safety guidelines listed in Safety instructions. Steps Place the processor in the processor tray. NOTE: Ensure that the pin 1 indicator on the processor tray is aligned with the pin 1 indicator on the processor.
  • Page 105 Figure 59. Applying thermal grease on top of the processor Place the heat sink on the processor and push down until the bracket locks onto the heat sink. NOTE: • Ensure that the two guide pin holes on the bracket match the guide holes on the heat sink. •...

  • Page 106: Installing A Processor And Heat Sink Module

    Figure 60. Installing the heat sink onto the processor Next steps Install the processor and heat sink module. Install the air shroud. Follow the procedure listed in After working inside your system. Related links Installing a processor and heat sink module Installing the air shroud Installing a processor and heat sink module Prerequisites...
  • Page 107 Steps Align the pin 1 indicator of the heat sink to the system board and then place the processor and heat sink module (PHM) on the processor socket. CAUTION: To avoid damaging the fins on the heat sink, do not press down on the heat sink fins.

  • Page 108: Processor Expansion Module

    Processor expansion module The processor expansion module (PEM) is a mezzanine system board. By installing a PEM, you can upgrade your two processor system to a four processor system. Removing the PEM Prerequisites Follow the safety guidelines listed in Safety instructions.

  • Page 109: Installing The Pem

    Figure 63. Removing the PEM Next steps If applicable, install the PEM. Related links Removing the expansion card riser Removing the air shroud Installing the PEM Installing the PEM Prerequisites Follow the safety guidelines listed in Safety instructions. Steps Hold the PEM using the handle and align the slots on the sides of the PEM with the standoffs on the sides of the system. Lower the PEM until it clicks into place.
  • Page 110 Figure 64. Installing the PEM Re-connect the cables to the PEM. For information about cable routing, see the section UPI cable routing. Installing and removing system components...

  • Page 111: Upi Cable Routing

    Figure 65. Installing the PEM Holding the PEM handle, lower the PEM until it firmly seats in place. Next steps Install the expansion card risers. Install the air shroud. Follow the procedure listed in After working inside your system. Related links Installing the expansion card riser Installing the air shroud UPI cable routing...
  • Page 112 Figure 66. Cable routing - Four processor system system board UPI cable connecting RM_UPI_C connectors on system board UPI cable connecting RM_UPI_A connectors on system and PEM board and PEM UPI cable connecting RM_UPI_B connectors on system board cable connecting the J_PEM_CLK connectors on system and PEM board and PEM UPI cable connecting RM_UPI_D connectors on system board...

  • Page 113: Pem Power Board

    Figure 67. Cable routing - Two processor system system board UPI cable connecting RM_UPI_A and RM_UPI_D connectors on system board UPI cable connecting RM_UPI_C and RM_UPI_B connectors on system board PEM power board PowerEdge R940 supports two PEM power boards. These are mainly used to supply power to the PEM. The power boards are installed on the J_PEM_PWR_R and J_PEM_PWR_L connectors available on the system board.

  • Page 114: Installing The Pem Power Board

    Figure 68. Removing the PEM power board Next steps If applicable, install the PEM power board. Related links Removing the air shroud Installing the PEM power board Installing the PEM power board Prerequisites Follow the safety guidelines listed in Safety instructions.

  • Page 115: Expansion Cards And Expansion Card Risers

    Figure 69. Installing the PEM power board Next steps Holding the PEM handle, lower the PEM until it firmly seats in place. Install the air shroud. Follow the procedure listed in After working inside your system. Related links Installing the air shroud Expansion cards and expansion card risers An expansion card in the system is an add-on card that can be inserted into an expansion slot on the system board or riser card to add enhanced functionality to the system through the expansion bus.
  • Page 116 Table 41. Expansion card riser configurations Riser PCIe slot on the Processor PCIe slots on riser PCIe slots Link width Slot width expansion card riser connection (Height) on riser (length) Slot 8 Processor 3 full height 3/4 length Riser 2 (IO_RISER2) Slot 9 Processor 3 full height...
  • Page 117 Card Type Slot priority Maximum number of cards 10 GB NIC SFP+ (Intel) 5, 1, 6, 2, 4, 3, 7 10 GB NIC (Broadcom) 5, 1, 6, 2, 4, 3, 7 10 GB NIC (QLogic) 5, 1, 6, 2, 4, 3 10 GB NIC dual port (Intel) 5, 1, 6, 2, 4, 3 10 GB NIC quad port (Intel)

  • Page 118: Removing Expansion Card Riser Blank

    Removing expansion card riser blank Prerequisites Follow the safety guidelines listed in Safety instructions. Follow the procedure listed in Before working inside your system. Steps Hold the expansion card riser blank and lift the blank out of the system. NOTE: When you upgrade your system from two processor configuration to four processor, ensure that you remove the riser blanks from the system.

  • Page 119: Removing The Expansion Card Riser

    Figure 71. Installing expansion card riser blank (right) Next steps Follow the procedure listed in After working inside your system. Removing the expansion card riser Prerequisites Follow the safety guidelines listed in Safety instructions. Follow the procedure listed in Before working inside your system.
  • Page 120 Figure 72. Removing expansion card riser (right) Figure 73. Removing expansion card riser (left) Installing and removing system components...

  • Page 121: Installing The Expansion Card Riser

    Next steps Install the expansion card riser. Related links Installing the expansion card riser Installing the expansion card riser Prerequisites Follow the safety guidelines listed in Safety instructions. Steps Align the guide rail on the side of the riser with the slot on the side of the chassis and lower the riser into the system. Lower the release lever until the connector on the riser connects with the connector on the processor expansion module (PEM).

  • Page 122: Removing The Expansion Card From Expansion Card Riser

    Figure 75. Installing expansion card riser (left) Next steps Connect the cables to the expansion card. Follow the procedure listed in After working inside your system. Removing the expansion card from expansion card riser Prerequisites Follow the safety guidelines listed in Safety instructions.

  • Page 123: Installing Expansion Card Into Expansion Card Riser

    Figure 76. Removing the expansion card from expansion card riser Next steps Install the expansion card into expansion card riser. If you are removing the card permanently, install a metal filler bracket over the empty expansion slot opening and lower the PCIe card latch to lock the bracket in place.
  • Page 124 NOTE: Store the filler bracket for future use. Filler brackets must be installed in empty expansion card slots to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system. Holding the expansion card by its edges, position the card so that the connector on the card aligns with the connector on the riser.

  • Page 125: Network Daughter Card Riser

    Network daughter card riser The Network Daughter Card (NDC) riser is a half-length, full-height card installed in a dedicated PCIe slot (IO_RISER1) on the system board. The NDC riser is also known as I/O riser 1. Removing the NDC riser Prerequisites Follow the safety guidelines listed in Safety...

  • Page 126: Installing The Ndc Riser

    Installing the NDC riser Prerequisites Follow the safety guidelines listed in Safety instructions. Steps Hold the Network Daughter Card (NDC) riser by its edges and align the connector on the NDC riser with the connector on the system board. Insert the NDC riser until the card is fully seated. Close the riser retention bracket and slide the bracket to lock the NDC riser.

  • Page 127: Network Daughter Card

    Network daughter card The network daughter card (NDC) is a small, removable mezzanine card, which provides the flexibility of selecting different connectivity options. Removing the NDC Prerequisites Follow the safety guidelines listed in Safety instructions. Follow the procedure listed in Before working inside your system.

  • Page 128: Installing The Ndc

    Installing the NDC Prerequisites Follow the safety guidelines listed in Safety instructions. Steps Orient the NDC so that the Ethernet ports fit through the slot in the NDC riser. Align the captive screws on the card with the screw holes on the NDC riser. Press the touch points on the card until the card connector engages with the connector on the NDC riser.

  • Page 129: Removing The Storage Controller Card

    Removing the storage controller card Prerequisites Follow the safety guidelines listed in Safety instructions. Follow the procedure listed in Before working inside your system. Remove the Network Daughter Card (NDC) riser. Steps Slide the riser retention bracket to unlock the storage controller card. Hold the storage controller card by its edges and lift to remove it from the connector on the system board.

  • Page 130: Installing The Storage Controller Card

    Installing the storage controller card Prerequisites Follow the safety guidelines listed in Safety instructions. Steps Connect the SAS cables to the card. NOTE: Ensure that you use the labels on the cable to connect the cables to the correct connectors. The cable does not function properly if reversed.

  • Page 131: Idsdm/Vflash Card (Optional)

    Related links Installing the NDC riser IDSDM/vFlash card (optional) The IDSDM/vFlash card combines the IDSDM and/or vFlash features into a single module. Removing the micro SD card Prerequisites Follow the safety guidelines listed in Safety instructions. Follow the procedure listed in Before working inside your system.

  • Page 132: Installing The Optional Idsdm/Vflash Card

    NOTE: Temporarily label each micro SD card with its corresponding slot number after removal. Steps Locate the IDSDM/vFlash connector on the system board. To locate IDSDM/vFlash, see the System board jumpers and connectors section. Holding the pull tab, lift the IDSDM/vFlash card out of the system. Figure 84.

  • Page 133: Power Supply Unit

    Figure 85. Installing the optional IDSDM/vFlash card Next steps Install the micro SD cards. NOTE: Re-install the micro SD cards into the same slots based on the labels you had marked on the cards during removal. Follow the procedure listed in After working inside your system.

  • Page 134: Hot Spare Feature

    If the load on the active PSU falls below 20 percent of PSU rated power wattage, then the redundant PSU is switched to the sleep state. You can configure the hot spare feature by using the iDRAC settings. For more information, see the iDRAC User’s Guide available at Dell.com/idracmanuals. Removing a power supply unit blank Prerequisites...

  • Page 135: Installing A Power Supply Unit Blank

    PSU handle. Unlatch and lift the optional cable management arm if it interferes with the PSU removal. For information about the cable management arm, see the system’s rack documentation at Dell.com/poweredgemanuals. Steps Press the orange release latch and slide the PSU out of the system by using the PSU handle.

  • Page 136: Installing A Power Supply Unit

    Figure 88. Removing a power supply unit Next steps Install the PSU. Related links Installing a power supply unit Installing a power supply unit The procedure for installing AC and DC PSUs is identical. Prerequisites Follow the safety guidelines listed in Safety instructions.

  • Page 137: Wiring Instructions For A Dc Power Supply Unit

    DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself. All electrical wiring must comply with applicable local or national codes and practices. Damage due to servicing that is not authorized by Dell is not covered by your warranty.

  • Page 138: Kit Contents

    DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself. All electrical wiring must comply with applicable local or national codes and practices. Damage due to servicing that is not authorized by Dell is not covered by your warranty.

  • Page 139: System Battery

    WARNING: To protect the power supply from electrostatic discharge, the captive screws must be covered with the rubber cap before inserting the mating connector into the power supply. Rotate the rubber cap clockwise to fix it over the captive screws. Insert the mating connector into the power supply.

  • Page 140: Internal Usb Memory Key (Optional)

    Figure 91. Installing the system battery Next steps If applicable, install the PEM. If applicable, install the expansion card risers. If applicable, connect the cables to the expansion card(s). Install the air shroud. Follow the procedure listed in After working inside your system.

  • Page 141: System Board

    To locate the USB port, see the Internal USB memory key (optional) section. If installed, remove the USB memory key from the USB port. Insert the replacement USB memory key into the USB port. Next steps Follow the procedure listed in After working inside your system.

  • Page 142: Installing The System Board

    Figure 92. Removing system board Next steps Install the system board. Related links Removing the air shroud Removing the fan cage Removing a power supply unit Removing the expansion card riser Removing the PEM Removing the micro SD card Removing the optional IDSDM/vFlash card Removing a processor and heat sink module Installing the system board Installing the system board...
  • Page 143 Ensure that the cables inside the system are routed along the chassis wall and secured using the cable securing bracket. Follow the procedure listed in After working inside your system. Import your new or existing iDRAC Enterprise license. For more information, see Integrated Dell Remote Access Controller User's Guide, at Dell.com/esmmanuals. Installing and removing system components...
  • Page 144 Click Ok. Import your new or existing iDRAC Enterprise license. For more information, see the Integrated Dell Remote Access Controller User's Guide at Dell.com/idracmanuals. Restoring the Service Tag by using the Easy Restore feature By using the Easy Restore feature, you can restore your Service Tag, license, UEFI configuration, and the system configuration data after replacing the system board.

  • Page 145: Trusted Platform Module

    Trusted Platform Module Trusted Platform Module (TPM) is a dedicated microprocessor designed to secure hardware by integrating cryptographic keys into devices. Software can use a TPM to authenticate hardware devices. Because each TPM chip has a unique and secret RSA key which is embedded during the manufacture of the TPM, it is capable of performing platform authentication operation.

  • Page 146: Initializing Tpm For Bitlocker Users

    Initializing TPM for BitLocker users Initialize the TPM. For more information, see http://technet.microsoft.com/en-us/library/cc753140.aspx. The TPM Status changes to Enabled, Activated. Initializing the TPM 1.2 for TXT users While booting your system, press F2 to enter System Setup. On the System Setup Main Menu screen, click System BIOS > System Security Settings. From the TPM Security option, select On with Pre-boot Measurements.

  • Page 147: Removing The Right Control Panel

    Removing the right control panel Prerequisites Follow the safety guidelines listed in Safety instructions. Follow the procedure listed in Before working inside your system. Remove the fan cage. Remove the air shroud. If applicable, remove the expansion card risers and PEM. NOTE: Ensure that you note the routing of the cables as you remove them from the system board.

  • Page 148: Installing The Right Control Panel

    Related links Removing the fan cage Removing the fan tray Removing the air shroud Removing the expansion card riser Removing the PEM Installing the right control panel Installing the right control panel Prerequisites Follow the safety guidelines listed in Safety instructions.

  • Page 149: Removing The Left Control Panel

    Next steps Lift the sides of the fan tray until the blue release tabs click in place. If applicable, install the expansion card risers and PEM. Install the air shroud. Install the fan cage. Related links Installing the PEM Installing the expansion card riser Installing the air shroud Installing the fan tray Installing the fan cage...

  • Page 150: Installing The Left Control Panel

    Figure 97. Removing left control panel Next steps Install the left control panel. Related links Removing the fan cage Removing the air shroud Removing the expansion card riser Removing the PEM Installing the left control panel Installing the left control panel Prerequisites Follow the safety guidelines listed in Safety...
  • Page 151 Figure 98. Installing left control panel Next steps Lift the sides of the fan tray until the blue release tabs click in place. If applicable, install the expansion card risers and PEM. Install the air shroud. Install the fan cage. Related links Installing the PEM Installing the expansion card riser...

  • Page 152: Using System Diagnostics

    Using system diagnostics If you experience a problem with your system, run the system diagnostics before contacting Dell for technical assistance. The purpose of running system diagnostics is to test your system hardware without using additional equipment or risking data loss. If you are unable to fix the problem yourself, service and support personnel can use the diagnostics results to help you solve the problem.

  • Page 153: System Diagnostic Controls

    System diagnostic controls Menu Description Configuration Displays the configuration and status information of all detected devices. Results Displays the results of all tests that are run. System health Provides the current overview of the system performance. Event log Displays a time-stamped log of the results of all tests run on the system. This is displayed if at least one event description is recorded.

  • Page 154: Jumpers And Connectors

    Jumpers and connectors This topic provides specific information about the jumpers. It also provides some basic information about jumpers and switches and describes the connectors on the various boards in the system. Jumpers on the system board help to disable the system and setup passwords.

  • Page 155: System Board Jumpers And Connectors

    System board jumpers and connectors Figure 99. System board jumpers and connectors Table 44. System board jumpers and connectors Item Connector Description J_PEM_PWR_R Right PEM power board connector B7, B1, B8, B2, B9, B3 Memory module sockets FAN_MOD2 Fan module cable connector B6, B12, B5, B11, B4, B10 Memory module sockets A7, A1, A8, A2, A9, A3...
  • Page 156 Item Connector Description J_PEM_PWR_L Left PEM power board connector A6, A12, A5, A11, A4, A10 Memory module sockets CPU1 CPU1 processor heat sink module socket J_PEM_CLK PEM clock connector RM_UPI_C UPI cable connector "C" LFT_CTRL_PNL Left control panel connector RM_UPI_A UPI cable connector "A"...
  • Page 157 Figure 100. Processor expansion module (PEM) connectors Table 45. Processor expansion module (PEM) connectors Item Connector Description D7, D1, D8, D2, D9, D3 Memory module sockets D6, D12, D5, D11, D4, D10 Memory module sockets C7, C1, C8, C2, C9, C3 Memory module sockets C6, C12, C5, C11, C4, C10 Memory module sockets...

  • Page 158: System Board Jumper Settings

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product.
  • Page 159 Move the jumper on the system board jumper from pins 4 and 6 to pins 2 and 4. Install the system cover. Reconnect the system to its electrical outlet and turn on the system, including any attached peripherals. Assign a new system and/or setup password. Jumpers and connectors...

  • Page 160: Getting Help

    Contacting Dell Dell provides several online and telephone based support and service options. If you do not have an active internet connection, you can find contact information about your purchase invoice, packing slip, bill, or Dell product catalog. Availability varies by country and product, and some services may not be available in your area.

  • Page 161: Quick Resource Locator For Poweredge R940 System

    Steps Go to Dell.com/QRL and navigate to your specific product or Use your smartphone or tablet to scan the model-specific Quick Resource (QR) code on your Dell PowerEdge system or in the Quick Resource Locator section. Quick Resource Locator for PowerEdge R940 system Figure 101.

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