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ThinkCentre

Hardware Replacement Guide

Types 8122, 8123, 8124
Types 8131, 8137, 8138

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Summary of Contents for IBM Types 8122

  • Page 1: Hardware Replacement Guide

    ™ ThinkCentre Hardware Replacement Guide Types 8122, 8123, 8124 Types 8131, 8137, 8138...
  • Page 3 ™ ThinkCentre Hardware Replacement Guide Types 8122, 8123, 8124 Types 8131, 8137, 8138...
  • Page 4 First Edition (April 2005) © Copyright International Business Machines Corporation 2005. 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

    Updating (flashing) BIOS from a diskette or CD-ROM . . 34 Chapter 2. Replacing hardware ..5 Removing the computer cover Pivoting or removing the optional hard disk drive mounting bracket . © Copyright IBM Corp. 2005...
  • Page 6 Hardware Replacement Guide...
  • Page 7: Overview

    This guide does not include procedures for all parts. It is expected that cables, switches, and certain mechanical parts can be replaced by trained service personnel without the need for step-by-step procedures. Note: Use only the parts provided by IBM. This guide contains procedures for replacing the following parts: v Power supply...
  • Page 8: Tools Required

    Tools required To replace some parts in your computer, you will need a flat-blade or Phillips screwdriver. Additional tools might be needed for certain parts. Handling static-sensitive devices Static electricity, although harmless to you, can seriously damage computer components. When you are replacing a part, do not open the static-protective package containing the new part until the defective part has been removed from the computer and you are ready to install the new part.
  • Page 9: Chapter 1. Locations

    The following illustration will help you locate the various components in your computer. Optical drive System board Memory modules Lower drive cage (diskette drive and hard disk drive) Power supply Internal speaker PCI adapter connector Diskette drive Optional PCI adapter © Copyright IBM Corp. 2005...
  • Page 10: Locating Controls And Connectors On The Front Of The Computer

    Locating controls and connectors on the front of the computer This section shows the various external connectors on the computer to which you can attach external devices. IEEE 1394 connector (some Microphone connector models) USB connector Headphone connector USB connector Hardware Replacement Guide...
  • Page 11: Locating Connectors On The Rear Of The Computer

    Locating connectors on the rear of the computer The following illustration shows the location of connectors on the rear of the computer. Power supply diagnostic Ethernet connector LEDs Voltage selection switch USB connectors (2) Power connector Standard keyboard connector Audio line in connector Standard mouse connector Audio line out connector PCI Express x16 adapter connector (some...
  • Page 12: 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. The following illustration shows the locations of parts on the system board. Internal speaker connector PCI adapter connector Memory connector 4...
  • Page 13: Chapter 2. Replacing Hardware

    Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support. Note: Use only the parts provided by IBM. Removing the computer cover Important Turn off the computer and wait 3 to 5 minutes to let the computer cool before removing the computer cover.
  • Page 14 6. Some models have an optional hard disk drive mounting bracket 1 installed. When this bracket is installed, access to some of the CRUs or FRUs inside the chassis is restricted. Note: There appears to be two drive bays in the bracket. However, due to thermal restrictions, only the bay 2 at the rear of the chassis can be used to install a hard disk drive.
  • Page 15: Pivoting Or Removing The Optional Hard Disk Drive Mounting Bracket

    Pivoting or removing the optional hard disk drive mounting bracket The optional hard disk drive mounting bracket can easily be pivoted upward or removed if necessary to enable replacement of some CRUs and FRUs. To pivot the optional hard disk drive bracket upward, pull outward at the bottom of the bracket.
  • Page 16: Removing And Replacing The Front Bezel

    Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support. Note: You will need a phillips screwdriver.
  • Page 17 2. To access the 12 V power connector, remove the lower drive cage thumb-screw and slide the lower drive cage toward the rear and out of the bay. Place the drive cage out of your way without disconnecting the drive signal cables.
  • Page 18 5. Remove the four screws that secure the power supply at the rear of the chassis. 6. Press inward on the metal retainer inside the chassis and slide the power supply toward the front of the chassis and lift it out of the chassis as shown. 7.
  • Page 19 9. Reconnect power supply connectors 1 and 2 to the system board. 10. Reinstall the lower drive cage and secure it with the thumb-screw. 11. Reconnect a power supply connector to each of the drives. 12. Go to “Completing the installation” on page 33. Chapter 2.
  • Page 20: Replacing The System Board Assembly

    Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support. 1. Turn off the computer and allow it to cool for one hour.
  • Page 21 6. Remove the lower drive cage by removing the thumb-screw and sliding the lower drive cage toward the rear of the computer. 7. Disconnect the cables attached to the drives in the lower drive cage and set the drive cage to the side. 8.
  • Page 22 13. Release and pivot lever 1 upward. Remove the heat sink 2 from the system board by carefully lifting it up and off the mounting bracket. Place the heat sink on its side on a clean, flat surface so the thermal material on the bottom of the heat sink does not touch the surface and become contaminated.
  • Page 23 15. Using the vacuum pen 1 , remove the microprocessor from the system board socket by lifting it straight up and out of the socket. Important Do not touch the gold contacts on the bottom of the microprocessor. If you must touch the microprocessor, touch only the sides. Notes: a.
  • Page 24 16. On the new system board, release and pivot the locking lever, then pivot the microprocessor retainer until it is open. Note: There will be a black protective cover on the retainer to protect the microprocessor socket. As you close the microprocessor retainer, remove the cover.
  • Page 25 19. Pivot the microprocessor retainer 3 to the closed position and rotate the locking lever 2 to secure the microprocessor 1 . Make sure the locking lever is engaged with the retainer tab when securing the microprocessor. 20. Align the beveled corners of the heat sink and the mounting bracket. Then position the heat sink 2 on the heat sink mounting bracket.
  • Page 26 21. Install the new system board assembly into the computer chassis by aligning the four slots in the metal plate on the bottom of the system board with the tabs in the chassis. Then slide the system board toward the rear of the chassis. Important Make sure to correctly align the metal plate on the bottom of the system board with the tabs in the chassis.
  • Page 27: Replacing The Microprocessor

    Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support. Important Leave your computer turned off for at least one hour before removing the microprocessor to allow the thermal interface between the microprocessor and the heat sink time to cool down.
  • Page 28 2. Remove the air baffle by squeezing the tabs 1 together and pulling it out of the chassis. 3. Release and pivot lever 1 upward. Remove the heat sink 2 from the system board by carefully lifting it up and off the mounting bracket. Hardware Replacement Guide...
  • Page 29 4. Release and pivot locking lever 2 securing the microprocessor 1 , then pivot the microprocessor retainer 3 until it is open. 5. Using the vacuum pen 1 , remove the microprocessor from the system board socket by lifting it straight up and out of the socket. Important Do not touch the gold contacts on the bottom of the microprocessor.
  • Page 30 Notes: a. Notice of the orientation of the notches 1 on the microprocessor. This is important when reinstalling the microprocessor on the system board. b. Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be kept as clean as possible. 6.
  • Page 31 Important To avoid damaging the microprocessor contacts, do not tilt the microprocessor when installing it into the socket. 9. Using the vacuum pen 1 , lower the microprocessor straight down into the microprocessor socket. Note: Install the black protective cover that was removed from the new microprocessor onto the defective microprocessor after the installation is complete.
  • Page 32 11. Align the beveled corners of the new heat sink and the mounting bracket. Then position the heat sink 2 on the heat sink mounting bracket. Lower the lever 1 to secure the heat sink. 12. Reinstall the air baffle. 13.
  • Page 33: Replacing A Memory Module

    Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support. 1. Remove the computer cover. See “Removing the computer cover” on page 5.
  • Page 34: Replacing An Adapter

    Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support. 1. Remove the computer cover. See “Removing the computer cover” on page 5.
  • Page 35: Replacing The Hard Disk Drive

    Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support. Important When you receive a new hard disk drive, you will also receive a Product Recovery CD.
  • Page 36: Replacing An Optical Drive

    Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support. 1. Remove the computer cover. See “Removing the computer cover” on page 5.
  • Page 37 3. Disconnect the signal and power cables from the rear of the optical drive. 4. Release the optical disk drive by pressing on the blue retainer lever at the side of the drive and removing it from the front of the computer. 5.
  • Page 38: Replacing The Diskette Drive

    Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support. 1. Remove the computer cover. See “Removing the computer cover” on page 5.
  • Page 39: Replacing The Mouse

    Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support. 1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down the computer, and turn off all attached devices.
  • Page 40 1. Remove the computer cover. See “Removing the computer cover” on page 5. Note: For this procedure, it helps to lay the computer on its side. 2. Remove the air baffle by squeezing the two tabs 1 together and pulling it out of the chassis.
  • Page 41: Completing The Installation

    Completing the installation After replacing a failed part, you need to install any other removed parts, install the computer cover, and reconnect any cables, including telephone lines and power cords. Also, depending on the part that was replaced, you might need to confirm the updated information in the Setup Utility program.
  • Page 42: Updating (Flashing) Bios From A Diskette Or Cd-Rom

    1. Insert a system program update (flash) diskette or CD-ROM into the appropriate drive. System program updates are available at http://www.ibm.com/pc/support on the World Wide Web. 2. Turn on the computer. If it is on already, you must turn it off and back on again.
  • Page 44 Part Number: 39J7784 Printed in USA (1P) P/N: 39J7784...

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