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Lenovo ThinkPad S531 Hardware Maintenance Manual
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Lenovo ThinkPad S531 Hardware Maintenance Manual

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  • Page 1 Hardware Maintenance Manual ThinkPad S531...
  • Page 2 Appendix A “Notices” on page 87. Third Edition (October 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 1050 M.2 solid-state drive ..1190 keyboard bezel assembly with keyboard . . 1060 Memory module ... . 2010 LCD bezel assembly ..1070 Battery pack .

  • 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) 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 Identification

    20AA0009UK). FRU identification Use Lenovo eSupport to identify major FRUs, FRU part numbers, and FRU descriptions for a product at an MT - serial number level. Examples of major FRUs are hard disk drive, system board, liquid crystal display (LCD), and memory module.
  • 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: Power System Checkout

    1. Go to http://www.lenovo.com/diags. 2. Click Lenovo Bootable Diagnostics. 3. Follow the instructions on the Web site to create a bootable diagnostic medium on a USB device or CD. To use the diagnostic medium you have created, do one of the following: •...

  • Page 33: Checking The Built-In Battery And Operational Charging

    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 1. Disable the built-in battery. See “Disabling the built-in battery” on page 54. 2. Remove the backup battery. See “1080 Backup battery” on page 64. 3. Measure the voltage of the backup battery. See the following illustration. Wire Voltage (V dc) +2.5 to +3.2 Black Ground...

  • 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

    4. Select Password. 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: Hibernation Mode

    • The time set on the resume timer elapses. Note: The computer does not accept any input immediately after it enters sleep mode. Wait a few seconds before taking any action to reenter operation mode. Hibernation mode In hibernation mode, the following occurs: •...

  • Page 41: Numeric Error Codes

    Note: For a device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device. Numeric error codes Table 2. Numeric error codes Symptom or error FRU or action, in sequence 0177 Replace the system board. Bad SVP data, stop POST task—...

  • Page 42: Error Messages

    Thermal sensing error. Replace the system board. This system does not support batteries that are not Replace the battery. genuine Lenovo-made or authorized. The system will continue to boot, but may not charge unauthorized batteries. Attention: Lenovo has no responsibility for the...

  • Page 43: No-Beep Symptoms

    LCD technology, but excessive pixel problems can cause viewing concerns.If the LCD you are servicing has two or less visible defective pixels, it should not be considered faulty. 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: •...

  • Page 44: Undetermined Problems

    2. If no error is detected, do not replace any FRUs. 3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist. Undetermined problems If the diagnostic tests did not identify the adapter or device that has failed, if wrong devices are installed, or if the system simply is not operating, follow these procedures to isolate the failing FRU (do not isolate FRUs that have no defects).

  • Page 45: Chapter 5. Status Indicators

    This chapter presents the 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 Blinking three times: The computer is initially connected to power. On: The computer is in use. Off: The computer is off or in hibernation mode. Slow blinking: The computer is in sleep mode. Fast blinking: The computer is entering sleep or hibernation mode.

  • Page 47: Chapter 6. Function Keys

    For Windows 8: Opens the Search charm. Views the programs that you have opened. For Windows 7: Opens Computer. For Windows 8: Views all the programs. Launches the calculator. Locks the operating system. Opens the default Web browser. Opens Computer. © Copyright Lenovo 2013...
  • Page 48 Table 8. Function keys (continued) Function key and key Description combination Press Fn+Esc to enable or disable the Fn Lock function and switch between default mode and legacy mode of using the function keys. • When the Fn Lock function is disabled: The Fn Lock indicator is off (default mode). To initiate the special function of each function key, press the corresponding function key directly.

  • Page 49: Chapter 7. Locations

    Camera Combo audio jack Microphones SIM card slot Fan louvers Built-in stereo speaker (right) Power button Fingerprint reader Numeric keypad System status indicator ® Ethernet connector TrackPoint pointing stick HDMI port Touch pad USB 3.0 connector © Copyright Lenovo 2013...

  • Page 50: Rear View

    Rear view Security-lock slot Always on USB connector ac power connector Media card reader slot Lenovo OneLink connector Built-in stereo speaker (left) Bottom view M.2 solid-state drive slot Integrated battery Emergency reset hole Hard disk drive or solid-state drive Memory-upgrade slot...

  • 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

    Major FRUs Table 9. Major FRUs FRU descriptions Self-service Optional service LCD unit Keyboard bezel assembly with keyboard Power button board Fingerprint reader assembly Thermal fan assembly System board Backup battery Speaker assembly Hard disk drive or solid-state drive Hard disk drive sub card or solid-state drive sub card Hall sensor board Base cover Battery pack...

  • Page 53: Lcd Frus

    Table 9. Major FRUs (continued) FRU descriptions Self-service Optional service M.2 solid-state drive Memory module Media card reader board DC-in board Lenovo OneLink connector cover TrackPoint cap LCD FRUs Table 10. LCD FRUs No. FRU descriptions Self-service Optional service LCD bezel assembly...

  • Page 54: Miscellaneous Parts And Other Frus

    Miscellaneous parts and other FRUs Table 11. Miscellaneous parts FRU descriptions Self-service Optional service Miscellaneous parts: • Dummy card for media card reader slot • Lenovo OneLink connector cover Screw kit Table 12. Other FRUs FRU descriptions Self-service Optional service ac power adapter...

  • Page 55: 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 56: Retaining Serial Numbers

    If you replace the system board, you must restore the serial number of the system unit to its original value. Before replacing the system board, save the original serial number by doing the following: 1. Install the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.

  • Page 57: Retaining The Uuid

    When you replace the system board, follow the following steps to create new UUID for the system board if the system board does not have a UUID: 1. Install the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
  • Page 58 If the system board is being replaced, try to read the ECA information from the old system board and transfer the information to the new system. If the system board is inoperable, this will not be possible. Hardware Maintenance Manual...

  • Page 59: 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 60: Before Servicing The Computer

    1010 Lenovo OneLink connector cover Removal steps of the Lenovo OneLink connector cover Remove the connector cover as shown in the following illustration. Note: Ensure that you reattach the connector cover to the Lenovo OneLink connector after finishing the servicing. 1020 Base cover...
  • Page 61 Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 5 mm, flat-head, nylon-coated (6) (1.85 kgf-cm) Chapter 9 Removing or replacing a FRU...

  • Page 62: 1030 Hard Disk Drive Or Solid-State Drive

    Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. Apply those labels when you replace the base cover. For the labels that are not shipped with the new base cover, peel them off from the old base cover, and adhere them to the new one.
  • Page 63 Removal steps of the hard disk drive or solid-state drive Note: Remove the screws that secure the hard disk drive or solid-state drive . Then slide the hard disk drive or solid-state drive as shown to release it from the connector and the hook Step Screw (quantity) Color...

  • Page 64: 1040 Wireless Lan Card

    Removal steps of the hard disk drive bracket or solid-state drive bracket Step Screw (quantity) Color Torque M3 × 3 mm, flat-head, nylon-coated (4) Silver 0.392 Nm (4.0 kgf-cm) 1040 Wireless LAN card For access, remove this FRU: • “1020 Base cover” on page 54 Hardware Maintenance Manual...

  • Page 65: 1050 M.2 Solid-State Drive

    Removal steps of the wireless LAN card Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: Plug the gray cable into the connector labeled MAIN or 1 on the card; and plug the black cable into the connector labeled AUX or 2 on the card.
  • Page 66 • Ensure that you partition the M.2 solid-state drive after installing it on the computer you are servicing. Otherwise, the M.2 solid-state drive will not function correctly. For instructions on on how to partition an M.2 solid-state drive, go to: http://www.lenovo.com/support/msata-fru Step Screw (quantity)

  • Page 67: 1060 Memory Module

    1060 Memory module For access, remove this FRU: • “1020 Base cover” on page 54 Removal steps of the memory module When installing: Insert the notched end of the memory module into the memory slot. Press the memory module in firmly, and pivot it downward until it snaps into place.
  • Page 68 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 69 When installing: Ensure that the connectors are attached firmly and the cables are routed as shown in the following illustration. Chapter 9 Removing or replacing a FRU...

  • Page 70: 1080 Backup Battery

    1080 Backup battery For access, remove these FRUs in order: • “1020 Base cover” on page 54 • “1070 Battery pack” on page 61 DANGER Use only the authorized battery specified for your computer. Any other battery could ignite or explode.
  • Page 71 2. Remove the thermal fan assembly. When installing: • Always wear fingerstalls when handling the thermal fan assembly. Do not touch or hold any part of the thermal fan assembly with bare fingers. • Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked as shown in the following illustrations.

  • Page 72: 1100 Hard Disk Drive Sub Card Or Solid-State Drive Sub Card

    For models with a discrete thermal fan assembly For models with an integrated thermal fan assembly • Do not touch the thermal grease. • Do not press, touch, or rotate the fan impeller. • Do not touch the fan inlet hole. •...

  • Page 73: 1110 Hall Sensor Board

    • “1030 Hard disk drive or solid-state drive” on page 56 Removal steps of the hard disk drive sub card or solid-state drive sub card Torque Step Screw (quantity) Color M2 × 3 mm, flat-head, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm) 1110 Hall sensor board For access, remove these FRUs in order:...

  • Page 74: 1120 Speaker Assembly

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (1) (1.85 kgf-cm) 1120 Speaker assembly For access, remove these FRUs in order: • “1020 Base cover” on page 54 • “1030 Hard disk drive or solid-state drive” on page 56 •...

  • Page 75: 1130 Media Card Reader Board

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 2 mm, big-head, nylon-coated (2) (1.85 kgf-cm) When installing: Ensure that the connector is attached firmly and the cables are routed as shown in the following illustration. 1130 Media card reader board For access, remove these FRUs in order: •...
  • Page 76 Removal steps of the media card reader board Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (1) (1.85 kgf-cm) When installing: Ensure that the cables are routed as shown in the following illustration. Hardware Maintenance Manual...

  • Page 77: 1140 Fingerprint Reader Assembly

    1140 Fingerprint reader assembly For access, remove these FRUs: • “1020 Base cover” on page 54 • “1030 Hard disk drive or solid-state drive” on page 56 • “1070 Battery pack” on page 61 • “1100 Hard disk drive sub card or solid-state drive sub card” on page 66 •...

  • Page 78: 1150 Lcd Unit

    1150 LCD unit For access, remove these FRUs in order: • “1020 Base cover” on page 54 • “1040 Wireless LAN card” on page 58 • “1070 Battery pack” on page 61 Removal steps of the LCD unit When installing: Ensure that the connectors are attached firmly.
  • Page 79 Step Screw (quantity) Color Torque 0.181 Nm M2.0 × 5 mm, flat-head, nylon-coated (2) Silver (1.85 kgf-cm) Black 0.392 Nm M2.5 × 5 mm, flat-head, nylon-coated (6) (4.0 kgf-cm) Chapter 9 Removing or replacing a FRU...

  • Page 80: 1160 Dc-In Board

    1160 DC-in board For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 54 • “1020 Base cover” on page 54 •...

  • Page 81: 1170 Power Button Board

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (2) (1.85 kgf-cm) 1170 Power button board For access, remove these FRUs: • “1020 Base cover” on page 54 • “1040 Wireless LAN card” on page 58 •...

  • Page 82: 1180 System Board

    Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) 1180 System board Important notices for handling the system board When handling the system board, read the following: • The system board has an accelerometer, which can be broken when several thousands of G-forces are applied.
  • Page 83 • “1050 M.2 solid-state drive” on page 59 • “1060 Memory module” on page 61 • “1070 Battery pack” on page 61 • “1080 Backup battery” on page 64 • “1090 Thermal fan assembly” on page 64 • “1100 Hard disk drive sub card or solid-state drive sub card” on page 66 •...
  • Page 84 Removal steps of the system board When installing: Ensure that the connectors are attached firmly to the system board. Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (5) (1.85 kgf-cm) Hardware Maintenance Manual...

  • Page 85: 1190 Keyboard Bezel Assembly With Keyboard

    1190 keyboard bezel assembly with keyboard For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 54 • “1020 Base cover” on page 54 • “1030 Hard disk drive or solid-state drive” on page 56 •...

  • Page 86: 2010 Lcd Bezel Assembly

    2010 LCD bezel assembly Removal step of the LCD bezel assembly When installing: Ensure that all the latches are attached firmly. 2020 Integrated camera and microphone combo card For access, remove these FRUs in order: • “2010 LCD bezel assembly” on page 80 Hardware Maintenance Manual...

  • Page 87: 2030 Lcd Hinge Cap

    Removal steps of the integrated camera and microphone combo card When installing: Ensure that the connector is attached firmly. 2030 LCD hinge cap For access, remove these FRUs in order: • “2010 LCD bezel assembly” on page 80 Removal steps of the LCD hinge cap Chapter 9 Removing or replacing a FRU...

  • Page 88: 2040 Lcd Panel

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (2) (1.85 kgf-cm) 2040 LCD panel For access, remove these FRUs in order: • “2010 LCD bezel assembly” on page 80 • “2030 LCD hinge cap” on page 81 Removal steps of the LCD panel Torque Step...

  • Page 89: 2050 Hinge Kit

    When installing: Ensure that the LCD connector is attached firmly. 2050 Hinge kit For access, remove these FRUs in order: • “1020 Base cover” on page 54 • “1040 Wireless LAN card” on page 58 • “1150 LCD unit” on page 72 •...

  • Page 90: 2060 Lcd Cable Assembly

    2060 LCD cable assembly For access, remove these FRUs in order: • “1020 Base cover” on page 54 • “1040 Wireless LAN card” on page 58 • “1150 LCD unit” on page 72 • “2010 LCD bezel assembly” on page 80 •...

  • Page 91: 2070 Antenna Kit And Lcd Rear Cover Assembly

    2070 Antenna kit and LCD rear cover assembly For access, remove these FRUs in order: • “1020 Base cover” on page 54 • “1040 Wireless LAN card” on page 58 • “1150 LCD unit” on page 72 • “2010 LCD bezel assembly” on page 80 •...
  • Page 92 Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 3 mm, wafer-head, nylon-coated (2) (1.85 kgf-cm) Cable routing: When you install the antenna kit, route the cables as shown in the following illustration. 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 93: 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 94: 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 Microsoft, Windows, and Windows Server are trademarks of the Microsoft group of companies.

  • Page 95: Appendix B. Abbreviation Table

    Graphics Processing Unit Hard Disk Drive HDMI High-definition multimedia interface Integrated circuits Integrate circuit card identity ICCID International Standardization Organization Local area network Liquid Crystal Display Media Access Control Machine type Machine type and model Personal Computer © Copyright Lenovo 2013...
  • Page 96 Abbreviation Term Platform Controller Hub POST Power-on self-test Random Access Memory Radio frequency RFID Radio-frequency identification Ring indicator Registered jack SATA Serial Advanced Technology Attachment Subscriber Identity Module Supervisor password TFTs Thin-film transistors UEFI Unified Extensible Firmware Interface Universal Serial Bus UUID Universally Unique Identifier VRAM...
  • Page 98 Part Number: 0C11116_02 Printed in China (1P) P/N: 0C11116_02 *1P0C11116_02*...

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