IBM 8122, 8137, 8138, 8131, 8124 User Manual

...

ThinkCentre

™

Hardw are Replacement Guide Ty pe s 8122, 8123, 8124 Ty pe s 8131, 8137, 8138



ThinkCentre

™

Hardw are Replacement Guide Ty pe s 8122, 8123, 8124 Ty pe s 8131, 8137, 8138



First Edition (April 2005)

US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

Overview . . . . . . . . . . . . . .v

Safety information for replacing CRUs . . . . . .v

Safety information for replacing FRUs . . . . . .v

Additional information resources . . . . . . .v

Tools required . . . . . . . . . . . . .vi

Handling static-sensitive devices . . . . . . .vi

Chapter 1. Locations . . . . . . . . .1

Locating components . . . . . . . . . . .1

Locating controls and connectors on the front of the

computer . . . . . . . . . . . . . . .2

Locating connectors on the rear of the computer . .3

Identifying parts on the system board . . . . . .4

Chapter 2. Replacing hardware . . . . .5

Removing the computer cover . . . . . . . .5

Pivoting or removing the optional hard disk drive

mounting bracket . . . . . . . . . . . . .7

Removing and replacing the front bezel . . . . .8

Replacing the power supply . . . . . . . . .8

Replacing the system board assembly . . . . . .12

Replacing the microprocessor . . . . . . . .19

Replacing a memory module . . . . . . . .25

Replacing an adapter . . . . . . . . . . .26

Replacing the hard disk drive . . . . . . . .27

Replacing an optical drive . . . . . . . . .28

Replacing the diskette drive . . . . . . . . .30

Replacing the keyboard . . . . . . . . . .30

Replacing the mouse . . . . . . . . . . .31

Replacing the internal speaker . . . . . . . .31

Completing the installation . . . . . . . . .33

Updating (flashing) BIOS from a diskette or

CD-ROM . . . . . . . . . . . . . . .34

iv Hardware Replacement Guide

Overview

This guide is intended to be used by customers who are replacing Customer Replaceable Units (CRUs) as well as trained service personnel who are replacing Field Replaceable Units (FRUs). In this guide CRUs and FRUs will often be referred to as parts.

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 v System board v Microprocessor v Memory modules v Optional PCI adapter v Hard disk drive v Optical drive v Diskette drive v Keyboard v Mouse v Internal speaker

Safety information for replacing CRUs

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 World Wide We b at http://www.ibm.com/pc/support.

Safety information for replacing FRUs

Do not attempt any repair before reading the “Important safety information” in the Hardware Maintenance Manual (HMM) for the computer. You can find the HMM on the World Wide Web at http://www.ibm.com/pc/support.

Additional information resources

If you have Internet access, the most up-to-date information for your computer is available from the World Wide Web.

You can find the following information:

v CRU removal and installation instructions v Publications v Troubleshooting information v Parts information v Downloads and drivers v Links to other useful sources of information

access this information, go to http://www.ibm.com/pc/support.

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.

When you handle parts and other computer components, take these precautions to avoid static-electricity damage:

v Limit your movement. Movement can cause static-electricity to build up around

you.

v Always handle parts and other computer components carefully. Handle

adapters, memory modules, system boards, and microprocessors by the edges. Never touch any exposed circuitry.

v Prevent others from touching the parts and other computer components.

v Before you replace a new part, touch the static-protective package containing the

part 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 new part from the static-protective packaging, and

install it directly in the computer without setting the part down. When this is not possible, place the static-protective package that the part came in on a smooth, level surface and place the part on it.

v Do not place the part on the computer cover or other metal surface.

vi Hardware Replacement Guide

Chapter 1. Locations

This chapter provides illustrations to help locate the various connectors, controls and components of the computer. To remove the computer cover, see “Removing the computer cover” on page 5.

Locating components

The following illustration will help you locate the various components in your computer.

1 Optical drive 6 System board 2 Memory modules 7 Lower drive cage (diskette drive and

hard disk drive)

3 Power supply 8 Internal speaker 4 PCI adapter connector 9 Diskette drive 5 Optional PCI adapter

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.

1 3 9 4

1 IEEE 1394 connector (some

4 Microphone connector

models)

2 USB connector 5 Headphone connector 3 USB connector

2 Hardware Replacement Guide

Locating connectors on the rear of the computer

The following illustration shows the location of connectors on the rear of the computer.

1 Power supply diagnostic

11 Ethernet connector

LEDs

2 Voltage selection switch 12 USB connectors (2) 3 Power connector 13 Standard keyboard connector 4 Audio line in connector 14 Standard mouse connector 5 Audio line out connector 15 PCI Express x16 adapter connector (some

models)

6 Microphone connector 16 PCI adapter connector 7 Serial connector (COM 1) 17 PCI adapter connector 8 Parallel connector 18 PCI Express x1 adapter connector 9 VGA monitor connector 19 Serial connector (COM 2) (some models) 10 USB connectors (2)

Chapter 1. Locations 3

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.

1 Internal speaker connector 12 PCI adapter connector 2 Memory connector 4 13 PCI adapter connector 3 Memory connector 3 14 Serial connector (COM 2) 4 Memory connector 2 15 PCI Express x1 adapter connector 5 Memory connector 1 16 Clear CMOS/Recovery jumper 6 Front panel connector 17 Battery 7 Power supply connector 18 Microprocessor fan connector 8 PATA IDE connector 19 Microprocessor 9 System fan connector 20 Microprocessor heat sink 10 SATA IDE connectors (4) 21 12V power connector 11 PCI Express x16 graphics connector 22 Diskette drive connector

4 Hardware Replacement Guide

Chapter 2. Replacing hardware

Attention:

Do not remove the computer cover or attempt any repair before reading the “Important safety information” in the 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.

1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down your

operating system, and turn off all attached devices.

2. Unplug all power cords from electrical outlets.

3. Disconnect all cables attached to the computer. This includes power cords,

input/output (I/O) cables, and any other cables that are connected to the computer. See “Locating controls and connectors on the front of the computer” on page 2 and “Locating connectors on the rear of the computer” on page 3.

4. Remove any locking devices such as a padlock or Kensington lock that secure

the computer cover.

5. Press the cover-release button on the right side cover, slide the cover to the

rear, and remove.

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. See “Pivoting or removing the optional hard disk drive mounting bracket” on page 7.

To replace the computer cover, see “Completing the installation” on page 33.

6 Hardware Replacement Guide

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