IBM 8137, 8138, 8131, 8123, 8124, 8122 manual Replacing hardware

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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.Disconnect all cables connected to the system board. See “Identifying parts on the system board” on page 4.

9. Remove screws 1 through 7.

10.Slide the system board toward the front of the computer to disengage it from the mounting tabs and lift it out.

11.Place the defective system board next to the new system board on a clean, flat surface.

12.Remove all memory modules from the defective system board and install them in the same connector on the new system board. See “Replacing a memory module” on page 25. Return here after installing the memory modules on the new system board.

Chapter 2. Replacing hardware 13

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Contents Hardware Replacement Guide Types 8122, 8123 Types 8131, 8137 Page Hardware Replacement Guide Types 8122, 8123 Types 8131, 8137 Page Contents Iv Hardware Replacement Guide Overview Handling static-sensitive devices Tools requiredLocating components LocationsIeee 1394 connector some 4 Microphone connector Models Locating connectors on the rear of the computer Identifying parts on the system board Removing the computer cover Replacing hardwareHardware Replacement Guide Replacing hardware Removing and replacing the front bezel Replacing the power supplyReplacing hardware Hardware Replacement Guide Replacing hardware Replacing the system board assembly Replacing hardware Hardware Replacement Guide Replacing hardware Hardware Replacement Guide Replacing hardware Hardware Replacement Guide Replacing the microprocessor Hardware Replacement Guide Replacing hardware Hardware Replacement Guide Replacing hardware Hardware Replacement Guide Replacing a memory module Replacing an adapter Replacing the hard disk drive Replacing an optical drive Replacing hardware Replacing the keyboard Replacing the diskette driveReplacing the internal speaker Replacing the mouseHardware Replacement Guide Completing the installation Updating flashing Bios from a diskette or CD-ROM Page Part Number 39J7784