Technical data

Parts Replacement
5-40
Removing the Main Logic Board
1. Turn off the computer and monitor.
2. Disconnect all external devices, ac power, and monitor power.
WARNING:
Make sure you disconnect the power cords
from the computer and monitor or the power cords from the
power outlets. When only the front panel switches are
turned off, dc logic voltage is still present.
3. Remove the outside cover.
4.
Remove the retaining bracket (short tower computers only).
5. Remove AGP graphics expansion board, if present.
6. Swing the brace away from the chassis (low profile computers only).
7. Pull up on the two latches attached to the main logic board.
This separates the main logic board from the backplane.
8. After sliding main logic board out half way, remove AUI/BNC network cable,
if present.
9. Carefully remove the main logic board from the chassis.
NOTE:
If you are replacing the main logic board, you might
need to move the processor and other components such as
DIMMs to the new main logic board. The processor assembly
should be removed and reinstalled as a single assembly.