System board
This section describes replacing the system board.
Removing the system board
To remove the system board:
1. Power down the workstation (see
Predisassembly procedures on page 69).
2. Disconnect power from the workstation (see
Predisassembly procedures on page 69).
3. Remove the side access panel (see
Removing the side access panel on page 72).
4. If your system has an airflow guide, remove it (see
Removing the airflow guide on page 92).
5. Remove expansion boards and graphics cards (see
Removing an expansion card on page 104).
6. (Optional) Remove the CPU heatsink (see
Removing the CPU heatsink on page 127).
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
Power connectionson page 90.
8. Gently squeeze the release mechanism as shown in the following figure.
Figure 5-73 Removing the system board
9. Lift the system board slightly to clear the release mechanism and then pull the board away from
the rear of the chassis and then lift the system board upward
2
out of the chassis.
TIP: If you leave the heatsink installed, you can grasp it and use it to guide the system board out
of the chassis.
132 Chapter 5 Replacing components ENWW
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