IBM 8123, 8138, 8131, 8137, 8124, 8122 manual Hardware Replacement Guide

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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. Otherwise, the system board might be damaged when you install the screws.

22.Align the seven screw holes, and install the screws.

23.Reinstall all adapter cards. See “Replacing an adapter” on page 26.

24.Reconnect all cables that were disconnected from the system board. Make sure all cables are routed correctly. See “Identifying parts on the system board” on page 4 for cable locations.

25.Reinstall the lower drive cage and secure it with the thumb screw.

26.Reconnect the signal and power cables to the drives in the lower drive cage.

27.Reinstall the air baffle.

28.Go to “Completing the installation” on page 33.

18Hardware Replacement Guide

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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 Tools required Handling static-sensitive devicesLocations Locating componentsIeee 1394 connector some 4 Microphone connector Models Locating connectors on the rear of the computer Identifying parts on the system board Replacing hardware Removing the computer coverHardware Replacement Guide Replacing hardware Replacing the power supply Removing and replacing the front bezelReplacing 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 diskette drive Replacing the keyboardReplacing the mouse Replacing the internal speakerHardware Replacement Guide Completing the installation Updating flashing Bios from a diskette or CD-ROM Page Part Number 39J7784