Removing the system board
To remove the system board:
1. Disconnect power from the system (see
Predisassembly procedures on page 52).
2. Remove the side access panel (see
Removing the side access panel on page 57).
3. If a memory riser is installed, remove it (see
Removing a memory riser assembly on page 78).
4. Remove expansion boards and graphics cards (see
Removing a PCI Express card on page 92,
Removing a PCI card on page 95), and then remove the processor heatsink (see Removing the
processor heatsink on page 106).
5. If an airflow duct is installed, remove the system and memory fan assembly (see
System and
memory fan assembly on page 71).
TIP: Make a note of the cable connections before disconnecting them from the system board.
For more information, refer to
Power connections to system components on page 71.
6. Disconnect all cabling from the system board.
7. To disengage the metal mounting standoffs from the chassis (1), slide the system board forward
as shown in the following figure.
Figure 4-76 Removing the system board
8. Lift the system board out of the chassis, being careful not to damage the cables and rear panel
connectors (2).
ENWW Removing and replacing components 111
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