Replacing the system board

The system board is mounted on stand-off retention hooks on the right side of the chassis. The board is secured by six screws, one on the back-right of the chassis (outside), and five inside the chassis.

Important All references to front, rear, left, or right on the computer are based on the computer being in a normal, upright position, as viewed from the front.

To remove the system board:

1Turn off the system and disconnect the power cord, modem cord (if installed), and all external peripheral devices.

2Remove the left side cover panel. (See “Removing the side cover” on page 18 and “Preventing static electricity discharge” on page 15.)

3Place the chassis gently on its right side.

4Remove all expansion cards from the system board. (See “Adding an expansion card” on page 45.)

5Disconnect all cables from the system board, including the power cables from the power supply. Note where the cables are connected.

6Remove the retaining screws securing the board to the right side of the chassis (inside the chassis).

 

Remove retaining

System Board -

screws from these

components

holes

removed for

 

clarity

 

Rear

Front

50Replacing and Adding System Components