Specifications

System board
This section describes replacing the system board.
Removing the system board
To remove the system board:
1. Prepare the computer for servicing by following the
Predisassembly procedures on page 62.
CAUTION: Failure to follow the predisassembly procedures can result in equipment damage or
data loss.
2. Remove the access panel (see Removing the access panel on page 64).
3. Rotate the drive cage upward (see
Removing an optical drive on page 73).
4. Rotate the power supply upward (see
Power supply on page 104).
5. Remove expansion boards and graphics cards (see
Removing an expansion card on page 116).
6. Remove the CPU heatsink (see
Removing the CPU heatsink on page 121).
7. 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
Cable management on page 96.
8. Remove the mounting screws (1) as shown in the following figure.
Figure 5-81 Removing the system board
9. Lift the system board slightly, and pull the board away from the rear of the chassis.
10. Lift the system board upward out of the chassis (2).
126 Chapter 5 Replacing components ENWW