Specifications

System board
This section describes replacing the system board.
Removing the system board
To remove the system board:
1. Disconnect power from the computer (see
Predisassembly procedures on page 70).
2. Remove the side access panel (see
Removing the side access panel on page 73).
3. Remove expansion boards and graphics cards (see
Removing an expansion card on page 100).
4. Remove the CPU heatsink (see
Removing the CPU heatsink on page 107).
5. Disconnect all cabling from the system board.
TIP: Make a note of the cable connections before disconnecting them from the system board.
For more information, refer to
Power connectionson page 90.
6. Remove the mounting screws (1) as shown in the following figure.
Figure 5-44 Removing the system board
7. Lift the system board slightly, and pull the board away from the rear of the chassis.
8. Lift the system board upward out of the chassis (2).
112 Chapter 5 Replacing components ENWW