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Lenovo ThinkPad T440p Hardware Maintenance Manual
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Lenovo ThinkPad T440p Hardware Maintenance Manual

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  • Page 1 Hardware Maintenance Manual ThinkPad T440p...
  • Page 2 Appendix A “Notices” on page 93. First Edition (September 2013) © Copyright Lenovo 2013. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.

  • Page 3: Table Of Contents

    LCD FRUs ....Lenovo Solution Center ..Miscellaneous parts and other FRUs ..Quick test programs...
  • Page 4 1060 M.2 wireless WAN card or M.2 solid-state 1210 Fingerprint reader ... drive....1220 LCD unit .

  • Page 5: About This Manual

    Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. Before servicing a ThinkPad product, be sure to read all the information under Chapter 1 “Safety information” on page 1 and Chapter 2 “Important service information” on page 19. © Copyright Lenovo 2013...
  • Page 6 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    Do not use this type of mat to protect yourself from electrical shock. © Copyright Lenovo 2013...

  • Page 8: Safety Inspection Guide

    • Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly. • Do not work alone under hazardous conditions or near equipment that has hazardous voltages. •...

  • Page 9: Handling Devices That Are Sensitive To Electrostatic Discharge

    0.1 ohm or less between the external ground pin and the frame ground. b. The power cord should be the authorized type specified for your computer. Go to: http://www.lenovo.com/serviceparts-lookup c. Insulation must not be frayed or worn. 4. Check for cracked or bulging batteries.

  • Page 10: Grounding Requirements

    – When working on a double-insulated or battery-operated system, use an ESD common ground or reference point. You can use coax or connector-outside shells on these systems. – Use the round ground prong of the ac plug on ac-operated computers. Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function.
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO DANGER DANGER Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 VORSICHT VORSICHT VORSICHT VORSICHT Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Hardware Maintenance Manual...

  • Page 25: Chapter 2. Important Service Information

    UEFI BIOS downloads. Telephone numbers for Lenovo Support are available at: http://www.lenovo.com/support/phone • System Disassembly/Reassembly videos that show the FRU removals or replacements for the Lenovo authorized service technicians are available in the following support site: http://www.lenovoservicetraining.com/ion/...

  • Page 26: Important Notice For Replacing A System Board

    Dynamic Configure To Order (CTO) model This model provides the ability for a customer to configure a Lenovo solution from a Web Site, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and eSupport will load these products as the 4-character MT, 4-character model, and 2-character country code.
  • Page 27 FRU list for a product. To get the general FRU list for a product, do the following: 1. Go to: http://www.lenovo.com/support 2. Click Parts & Accessories. 3. Follow the instructions on the screen to select product.
  • Page 28 Hardware Maintenance Manual...

  • Page 29: Chapter 3. General Checkout

    This chapter introduces following information: • “What to do first” on page 23 • “Checkout guide” on page 24 – “Lenovo Solution Center” on page 24 – “Quick test programs” on page 24 – “UEFI diagnostic program” on page 25 –...

  • Page 30: Checkout Guide

    The Lenovo Solution Center program is available for download at http://www.lenovo.com/diags. To run the Lenovo Solution Center program, go to Control Panel and click System and Security ➙ Lenovo - System Health and Diagnostics, and then follow the instructions on the screen.

  • Page 31: Uefi Diagnostic Program

    • Microsoft Windows Server 2003 • Microsoft Windows Server 2008 To download and install a quick test program, go to http://www.lenovo.com/diags, and follow the instructions on the Web site. To run a test using quick test program, do the following: 1.

  • Page 32: Bootable Diagnostic Programs

    If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a bootable diagnostic program from the Lenovo Support Web site. The bootable diagnostic programs enable you to test computer memory and internal storage devices, view system information, and check and recover the internal storage devices.

  • Page 33: Checking The Ac Power Adapter

    To check for detailed battery status information, do the following: • For Windows 7: Open the Power Manager program and click the Battery tab. • For Windows 8: Open the Lenovo Support program and click Battery Health, or open the Lenovo Settings program and click Power.

  • Page 34: Checking The Coin-Cell Battery

    2. Connect the computer to ac power to charge the battery. If the battery status icon in the Windows notification area indicates that the battery is not charging, remove the battery and let it return to room temperature. 3. Reinstall the battery. If the battery is still not charging, replace the battery pack. 4.

  • Page 35: Chapter 4. Related Service Information

    “Symptom-to-FRU index” on page 34 Service Web site: When the latest maintenance diskette and the system program service diskette become available, they will be posted on http://www.lenovo.com/support Restoring the factory contents by using the Recovery Disc Set When the main storage drive is replaced because of a failure, no product recovery program is on the new drive.

  • Page 36: Using The Windows Recovery Programs On The Windows 8 Operating System

    4. Select your language and click Next. 5. Read the license. If you agree with the terms and conditions, select I accept these terms and conditions and then click Next. If you do not agree with the terms and conditions, follow the instructions on the screen.

  • Page 37: Passwords

    If it has, it can be used for access to the hard disk drive. If no master hard disk password is available, neither Lenovo nor Lenovo authorized service technicians provide any services to reset either the user or the master hard disk password, or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.

  • Page 38: Supervisor Password

    To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the hard disk drive or solid-state drive with a scheduled fee.

  • Page 39: Power Management

    5. Select Hard-disk x password, where x is the letter of the hard disk drive. A pop-up window opens. 6. Select Master hard disk password. 7. Type the current master hard disk password in the Enter Current Password field. Then leave the Enter New Password field blank, and press Enter twice.

  • Page 40: Symptom-To-Fru Index

    If you have defined one of the following actions as the event that causes the system to go into hibernation mode, perform that action. • Closing the lid. • Pressing the power button. Also, the computer goes into hibernation mode automatically after a period of inactivity specified in power plan settings.
  • Page 41 Table 2. Numeric error codes (continued) FRU or action, in sequence Symptom or error 0187 Replace the system board. EAIA data access error—The access to EEPROM is failed. 0188 Replace the system board. Invalid RFID Serialization Information Area. 0189 Replace the system board. Invalid RFID configuration information area—The EEPROM checksum is not correct.

  • Page 42: Error Messages

    The battery installed is not supported by this system Replace the battery. and will not charge. Please replace the battery with the correct Lenovo battery for this system. Press the ESC key to continue. This system does not support batteries that are not Replace the battery.

  • Page 43: Intermittent Problems

    However, if the LCD has three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced. Notes: • This policy applies to all ThinkPad notebooks purchased on 1 January, 2008 or later.
  • Page 44 f. External diskette drive or optical drive g. Memory module h. PC cards 4. Turn on the computer. 5. Determine whether the problem has been solved. 6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU. 7.

  • Page 45: Copyright Lenovo

    This chapter presents the system-status indicators that show the status of the computer. Table 7. Status indicators Indicator Meaning Speaker-mute indicator On: The speakers are muted. Microphone-mute indicator On: The microphones are muted. Camera-status indicator On: The camera is in use. © Copyright Lenovo 2013...
  • Page 46 Table 7. Status indicators (continued) Indicator Meaning System-status indicator Blinks three times: The computer is initially connected to power. On: The computer is in use. Off: The computer is off or in hibernation mode. Blinks slowly: The computer is in sleep mode. Blinks fast: The computer is entering hibernation mode.

  • Page 47: Chapter 6. Function Keys

    Has the same function as the Pause key on a conventional keyboard. Fn+S Has the same function as the SysRq key on a conventional keyboard. Fn+K Has the same function as the ScrLK key on a conventional keyboard. © Copyright Lenovo 2013...
  • Page 48 Hardware Maintenance Manual...

  • Page 49: Chapter 7. Locations

    Serial Ultrabay Enhanced bay Microphones Smart card slot (on some models) Power button Fingerprint reader (on some models) Security-lock slot NFC logo (on some models) ThinkPad trackpad USB connector ® Always-on USB connector TrackPoint pointing stick © Copyright Lenovo 2013...

  • Page 50: Left View

    Left view ® Fan louvers Mini DisplayPort connector Video Graphics Array (VGA) connector USB 3.0 connectors Audio connector Media-card reader Bottom view Battery Keyboard drainage holes SIM-card slot Speaker Docking station connector Hardware Maintenance Manual...

  • Page 51: Locating Frus And Crus

    CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request.

  • Page 52: Major Frus And Crus

    Major FRUs and CRUs Table 9. Major FRUs and CRUs FRU descriptions Self-service Optional-service LCD unit Keyboard bezel assembly Fingerprint reader card Fingerprint bezel Hardware Maintenance Manual...
  • Page 53 Table 9. Major FRUs and CRUs (continued) FRU descriptions Self-service Optional-service Power-button card Smart-card reader Base cover assembly Ethernet card Optical drive Memory module Coin-cell battery M.2 wireless WAN card or M.2 solid-state drive M.2 wireless LAN card External battery Big door Speaker assembly Hard disk drive or solid-state drive (depending on the model)

  • Page 54: Lcd Frus

    LCD FRUs Table 10. LCD FRUs No. FRU descriptions Self-service Optional-service LCD bezel LCD hinge Hardware Maintenance Manual...

  • Page 55: Miscellaneous Parts And Other Frus

    FRU descriptions Self-service Optional-service Screw pack Table 12. Other FRUs FRU descriptions Self-service Optional-service ac adapter Power cord Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: http://www.lenovo.com/serviceparts-lookup Chapter 7 Locations...
  • Page 56 Hardware Maintenance Manual...

  • Page 57: Chapter 8. Fru Replacement Notices

    Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at http://www.lenovo.com/support.

  • Page 58: Retaining Serial Numbers

    ThinkPad Setup program is set to UEFI Only. 1. Connect a USB memory key to the computer. 2. Go to http://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site.

  • Page 59: Retaining The Uuid

    ThinkPad Setup program is set to UEFI Only. 1. Connect a USB memory key to the computer. 2. Go to http://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site.
  • Page 60 Hardware Maintenance Manual...

  • Page 61: Chapter 9. Removing Or Replacing A Fru

    Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual is available for downloading at http://www.lenovo.com/support.

  • Page 62: Before Servicing The Computer

    The only exception to this is if the battery pack is physically damaged or a customer is reporting a possible safety issue. If the Lenovo Solution Center program is not installed on the computer, the customer should download and install the program to diagnose the battery pack, before getting a non-physically damaged battery pack replaced.

  • Page 63: 1020 Big Door

    1020 Big door For access, remove this FRU: • “1010 External battery pack” on page 56 Removal steps of the big door Step Screw (quantity) Color Torque Black 0.392 Nm M2.5 × 8 mm, flat-head, nylon-coated (2) (4.0 kgf-cm) Chapter 9 Removing or replacing a FRU...
  • Page 64 Applying labels to the big door: The new big door FRU is shipped with a kit containing labels of several kinds. Apply those labels when you replace the big door. For the labels that are not shipped with the new big door, peel them from the old big door, and adhere them to the new one.

  • Page 65: 1030 Hard Disk Drive Or Solid-State Drive

    1030 Hard disk drive or solid-state drive For access, remove these FRUs: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 Attention: • Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data.

  • Page 66: 1040 Optical Drive

    When installing: Ensure that the hard disk drive or solid-state drive is firmly attached. 1040 Optical drive For access, remove these FRUs in order: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 Removal steps of optical drive Release the captured screw Step Screw (quantity)

  • Page 67: 1050 M.2 Wireless Lan Card

    Remove the optical drive. 1050 M.2 wireless LAN card For access, remove these FRUs: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 Removal steps of the M.2 wireless LAN card Step Screw (quantity) Color Torque M2 ×...

  • Page 68: 1060 M.2 Wireless Wan Card Or M.2 Solid-State Drive

    When installing: Plug the gray cable into the connector marked MAIN or 1 on the card; and plug the black cable into the connector marked AUX or 2 on the card. 1060 M.2 wireless WAN card or M.2 solid-state drive For access, remove these FRUs: •...

  • Page 69: 1070 Memory Module

    When installing: Plug the orange cable into the connector marked MAIN on the card; and plug the blue cable into the connector marked AUX on the card. 1070 Memory module For access, remove these FRUs: • “1010 External battery pack” on page 56 •...

  • Page 70: 1090 Fan Assembly

    • “1020 Big door” on page 57 DANGER Use only the authorized battery specified for your computer. Any other battery could ignite or explode. Removal steps of the coin-cell battery When installing: Ensure that the connector is firmly attached. 1090 Fan assembly For access, remove these FRUs: •...

  • Page 71: 1100 Keyboard

    When installing: Attach the thermal-fan-assembly connector to the system board and tighten the screws in ascending alphabetical order as illustrated above. 1100 Keyboard For access, remove these FRUs: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 Before removing the keyboard, find the keyboard multi-tool in the shipping package of the new keyboard.
  • Page 72 Removal steps of the keyboard To reveal the screw heads beneath the frame, use the flat end of the multi-tool in the shipping package of the new keyboard to slide the keyboard forward by 2.5 mm (0.1 inch). Note: Do not press and hold the keys while sliding the keyboard frame, otherwise the keyboard frame cannot be moved.
  • Page 73 Use the cross end of the multi-tool to loosen the screws. Chapter 9 Removing or replacing a FRU...
  • Page 74 Installation steps of the keyboard Attach the connectors and then turn over the keyboard. Insert the keyboard into the keyboard bezel as shown. Ensure that the front edge of the keyboard is under the frame of the keyboard bezel. Ensure that the screw heads are exposed completely. Otherwise, reveal the screw heads by sliding the keyboard frame forward with the flat end of the keyboard multi-tool.
  • Page 75 Tighten the screws with the cross end of the keyboard multi-tool to secure the keyboard in place. Slide the keyboard frame backward by 2.5 mm (0.1 inch) with the flat end of the keyboard multi-tool to hide the latches of the keyboard frame under the keyboard bezel. Note: Do not press and hold the keys while sliding the keyboard frame, otherwise the keyboard frame cannot be moved.

  • Page 76: 1120 Keyboard Bezel Assembly

    Insert the flat end of the keyboard multi-tool into the sides as shown to push the keyboard frame backward. Ensure that there is no gap between the keyboard frame and keyboard bezel. 1120 Keyboard bezel assembly For access, remove these FRUs in order: •...
  • Page 77 Removal steps of the keyboard bezel assembly Remove the screws 1 in ascending alphabetical order (a to g) as illustrated. Then remove the screws 2 in ascending alphabetical order (a to d) as illustrated. Step Screw (quantity) Color Torque Black 0.181 Nm M2 ×...

  • Page 78: 1130 Touch Pad

    When installing: Ensure that the connectors are firmly attached. Remove the keyboard bezel assembly. 1130 Touch pad For access, remove these FRUs: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 • “1100 Keyboard” on page 65 •...

  • Page 79: 1140 Power-Button Card

    Removal steps of the touch pad Step Screw (quantity) Color Torque M2 × 1.5 mm, big head, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm) 1140 Power-button card For access, remove these FRUs: • “1010 External battery pack” on page 56 •...

  • Page 80: 1150 Smart-Card Reader

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, big head, nylon-coated (1) (1.85 kgf-cm) When installing: Ensure that the connector is firmly attached. 1150 Smart-card reader For access, remove these FRUs: • “1010 External battery pack” on page 56 •...

  • Page 81: 1160 Base Cover Assembly

    Step Screw (quantity) Color Torque 0.181 Nm M2 × 2.5 mm, flat-head, nylon-coated (2) Silver (1.85 kgf-cm) When installing: Ensure that the connector is firmly attached. 1160 Base cover assembly For access, remove these FRUs in order: • “1010 External battery pack” on page 56 •...
  • Page 82 Detach the connectors. When installing: Ensure that the connectors are firmly attached. Hardware Maintenance Manual...

  • Page 83: 1170 Ethernet Card

    When installing: Ensure that the cables are correctly routed and the connectors are firmly attached. Remove the base cover assembly. 1170 Ethernet card For access, remove these FRUs: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 •...

  • Page 84: 1180 Speaker Assembly

    Removal steps of the Ethernet card Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, big head, nylon-coated (1) (1.85 kgf-cm) 1180 Speaker assembly For access, remove these FRUs: • “1010 External battery pack” on page 56 •...

  • Page 85: 1190 Microprocessor

    1190 Microprocessor For access, remove these FRUs: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 Removal steps of the microprocessor 1200 System board Important notices for handling the system board When handling the system board, observe the following: •...
  • Page 86 • “1020 Big door” on page 57 • “1030 Hard disk drive or solid-state drive” on page 59 • “1040 Optical drive” on page 60 • “1050 M.2 wireless LAN card” on page 61 • “1060 M.2 wireless WAN card or M.2 solid-state drive” on page 62 •...
  • Page 87 Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, big head, nylon-coated (4) (1.85 kgf-cm) When installing: Ensure that the connectors are firmly attached to the system board. Chapter 9 Removing or replacing a FRU...

  • Page 88: 1210 Fingerprint Reader

    1210 Fingerprint reader For access, remove these FRUs: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 • “1030 Hard disk drive or solid-state drive” on page 59 • “1050 M.2 wireless LAN card” on page 61 •...

  • Page 89: 1220 Lcd Unit

    1220 LCD unit For access, remove these FRUs: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 • “1100 Keyboard” on page 65 • “1120 Keyboard bezel assembly” on page 70 Removal steps of the LCD unit Torque Step Screw (quantity)
  • Page 90 When installing: Ensure that the connectors are firmly attached and you route the cables firmly and tape up in the proper positions. Attention: When you route the cables, ensure that they are not subject to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.

  • Page 91: 1230 Dc-In Cable Assembly

    1230 DC-in cable assembly For access, remove these FRUs: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 • “1160 Base cover assembly” on page 75 • “1220 LCD unit” on page 83 Removal steps of the DC-in cable assembly Chapter 9 Removing or replacing a FRU...

  • Page 92: 2010 Lcd Bezel Assembly

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (2) (1.85 kgf-cm) When installing: Ensure that the connector is firmly attached. 2010 LCD bezel assembly For access, remove these FRUs in order: • “1010 External battery pack” on page 56 Removal step of the LCD bezel assembly When installing: Ensure that a new LCD front bezel is used.
  • Page 93 Removal steps of the LCD panel Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3mm, big-head, nylon-coated (4) (1.85 kgf-cm) Chapter 9 Removing or replacing a FRU...

  • Page 94: 2030 Lcd Hinge

    When installing: Ensure that the LCD connector is attached firmly. Removal steps of the LCD cable assembly 2030 LCD hinge For access, remove these FRUs in order: • “1010 External battery pack” on page 56 • “1020 Big door” on page 57 •...

  • Page 95: 2040 Camera/Microphone Combo Card

    Removal steps of the LCD hinge Torque Step Screw (quantity) Color M2.5 × 2.5 mm, big-head, nylon-coated (4) Black 0.392 Nm (4.0 kgf-cm) 2040 Camera/microphone combo card For access, remove these FRUs: • “1010 External battery pack” on page 56 •...

  • Page 96: 2050 Antenna Kit And Lcd Rear Cover Assembly

    Removal steps of the camera/microphone combo card When installing: Ensure that the connector is firmly attached. 2050 Antenna kit and LCD rear cover assembly For access, remove these FRUs in order: • “1010 External battery pack” on page 56 • “1020 Big door”...
  • Page 97 Removal steps of the antenna kit and LCD rear cover assembly Attention: As you route the cables, ensure that they are not subject to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken. Chapter 9 Removing or replacing a FRU...
  • Page 98 Antenna locations Wireless-LAN auxiliary antenna (black) Wireless-WAN auxiliary antenna (blue) Wireless-WAN main antenna (orange) Wireless-LAN main antenna (white) Hardware Maintenance Manual...

  • Page 99: Appendix A. Notices

    Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.

  • Page 100: Electronic Emissions Notices

    For electronic emission information on Class B digital devices, refer to the corresponding information in the User Guide. EU contact: Lenovo, Einsteinova 21, 851 01 Bratislava, Slovakia Trademarks The following terms are trademarks of Lenovo in the United States, other countries or both: Lenovo ThinkPad TrackPoint Ultrabay Microsoft, Windows, and Windows Server are trademarks of the Microsoft group of companies.

  • Page 101: Appendix B. Abbreviation Table

    Electrically Erasable Programmable Read-Only Memory Extensible Firmware Interface Electrostatic discharge Field Replaceable Unit General Announce Variant Integrated circuits liquid crystal display Machine type and model POST Power-on self-test RFID Radio-frequency identification Supervisor password UUID Universally unique identifier © Copyright Lenovo 2013...
  • Page 102 Hardware Maintenance Manual...
  • Page 104 Part Number: SP40A25467 Printed in China (1P) P/N: SP40A25467 *1PSP40A25467*...

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