Lenovo ThinkCentre A51p Hardware Removal And Replacement Manual

Hardware removal and replacement guide (english)

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ThinkCentre
Hardware Removal and Replacement
Guide
Types 8143, 8144, 8146
Types 8422, 8423, 8427

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Table of Contents
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Summary of Contents for Lenovo ThinkCentre A51p

  • Page 1 ™ ThinkCentre Hardware Removal and Replacement Guide Types 8143, 8144, 8146 Types 8422, 8423, 8427...
  • Page 3 ™ ThinkCentre Hardware Removal and Replacement Guide Types 8143, 8144, 8146 Types 8422, 8423, 8427...
  • Page 4 First Edition (April 2004) © Copyright International Business Machines Corporation 2004. All rights reserved. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
  • Page 5: Table Of Contents

    Contents Overview ....v Removing and replacing the power supply . Removing and replacing the system board assembly Information resources . Removing and replacing the microprocessor . Tools required .
  • Page 6 Hardware Removal and Replacement Guide...
  • Page 7: Overview

    Overview This manual contains instructions for removing and replacing the following customer replacement units (CRUs): v Power supply v System board v Microprocessor v Hard disk drive v Memory Information resources The Quick Reference that comes with your computer provides information for setting up your computer, starting the operating system, troubleshooting, and notices.
  • Page 8 v When you install a new option, touch the static-protective package containing the option to a metal expansion-slot cover or other unpainted metal surface on the computer for at least two seconds. This reduces static electricity in the package and your body. v When possible, remove the option and install it directly in the computer without setting the option down.
  • Page 9: Replacing Customer Replaceable Units (Crus)

    Replacing customer replaceable units (CRUs) Attention Do not open your computer or attempt any repair before reading the “Important safety information” in the Quick Reference that was included with your computer. If you no longer have this copy of the Quick Reference, you can obtain one online from the IBM Web site at http://www.ibm.com/pc/support.
  • Page 10: Locating Components

    Locating components The following illustration will help you locate the various components in your computer. DIMMs Power supply Hard disk drive PCI slot Optional PCI adapter Hardware Removal and Replacement Guide...
  • Page 11: Identifying Parts On The System Board

    Identifying parts on the system board The system board (sometimes called the planar or motherboard) is the main circuit board in your computer. It provides basic computer functions and supports a variety of devices that are IBM-installed or that you can install later. The following illustration shows the locations of parts on the system board.
  • Page 12: Removing And Replacing The Power Supply

    Removing and replacing the power supply Attention Do not open your computer or attempt any repair before reading the “Important safety information” in the Quick Reference that was included with your computer. If you no longer have this copy of the Quick Reference, you can obtain one online from the IBM Web site at http://www.ibm.com/pc/support.
  • Page 13 6. Press inward on the metal retainer and remove the power supply from the computer. 7. Install the new power supply into the chassis so that the screw holes in the power supply align with those in the chassis. Note: Use only the screws provided by IBM. 8.
  • Page 14: Removing And Replacing The System Board Assembly

    Removing and replacing the system board assembly Attention Do not open your computer or attempt any repair before reading the “Important safety information” in the Quick Reference that was included with your computer. If you no longer have this copy of the Quick Reference, you can obtain one online from the IBM Web site at http://www.ibm.com/pc/support.
  • Page 15 7. Remove the screws 1 through 7 , and remove the system board. 8. Place the old system board next to the new system board on a clean, flat surface. 9. Remove the microprocessor from the old system board to the new system board.
  • Page 16 tabs in the chassis. Important If the metal plate is not aligned correctly when you install the screws, you might damage the system board. 13. Align the seven screw holes, and install the screws. 14. Install all adapter cards to the new system board. See “Removing and Installing adapters”...
  • Page 17: Removing And Replacing The Microprocessor

    Removing and replacing the microprocessor Attention Do not open your computer or attempt any repair before reading the “Important safety information” in the Quick Reference that was included with your computer. If you no longer have this copy of the Quick Reference, you can obtain one online from the IBM Web site at http://www.ibm.com/pc/support.
  • Page 18 6. Release the lever 1 securing the microprocessor heat sink 2 . 7. Remove the heat sink: v If you are replacing the microprocessor with a new one, use the new heat sink. Note If you use the old heat sink with the new microprocessor, your computer could overheat and shut down sporadically.
  • Page 19 8. Release the lever 2 holding the microprocessor 1 , and rotate the microprocessor retainer 3 to the open position. 9. Do one of the following: Attention Do not the gold contacts on the bottom of the microprocessor. If you must touch the microprocessor, touch only the sides.
  • Page 20 microprocessor. Place the black cover on the old microprocessor. v If you are installing a microprocessor from the old system board to a new system board, use the vacuum pen 1 to pick up the microprocessor. Hardware Removal and Replacement Guide...
  • Page 21 10. Notice of the orientation of the notches 1 in the microprocessor. This is important when reinstalling the microprocessor on the system board. 11. Align the notches 1 on the microprocessor with the tabs on the microprocessor socket. 12. Install the microprocessor by inserting it straight down into the socket. Important To avoid damaging the microprocessor pins, do not tilt the microprocessor when installing it into the socket.
  • Page 22 v If you have replace the microprocessor, place the new heat sink on the microprocessor, and lower the handle in the locked position. Note If you use the old heat sink with the new microprocessor, your computer could over heat and shut down sporadically. v If you are replacing the system board only, install the original heat sink on the microprocessor, and lower the handle in the locked position.
  • Page 23: Removing And Replacing Memory

    Removing and replacing memory Attention Do not open your computer or attempt any repair before reading the “Important safety information” in the Quick Reference that was included with your computer. If you no longer have this copy of the Quick Reference, you can obtain one online from the IBM Web site at http://www.ibm.com/pc/support.
  • Page 24 2. Unlatch the adapter-slot-cover latch and remove the slot cover for the appropriate expansion slot. 3. Remove the adapter from the old system board. 4. Install the adapter into the appropriate slot on the new system board. 5. Close the adapter-slot-cover latch. 6.
  • Page 25: Removing And Replacing A Hard Disk Drive

    Removing and replacing a hard disk drive Attention Do not open your computer or attempt any repair before reading the “Important safety information” in the Quick Reference that was included with your computer. If you no longer have this copy of the Quick Reference, you can obtain one online from the IBM Web site at http://www.ibm.com/pc/support.
  • Page 26: Connecting A Parallel Ata Hard Disk Drive

    6. Insert the new hard disk drive, and place the bracket into the slot. 7. Connect the power and signal cables. 8. Press the blue tab to rotate and snap the drive into the computer. Be careful not to crimp the cables. 9.
  • Page 27 3. Position the cover on the chassis so that the rail guides on the bottom of the cover engage the rails and push the cover closed until it latches. Replacing customer replaceable units (CRUs)
  • Page 28 4. Reconnect the external cables and the power cord to the computer. Diagnostic LEDs PS/2 mouse connector Voltage selection switch USB connectors Power connector Ethernet connector Audio line out connector USB connectors Audio line in connector PCI Express x16 slot VGA monitor connector PCI Express x1 slot Parallel connector...
  • Page 30 Part Number: 19R0789 Printed in USA (1P) P/N: 19R0789...

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