System Board - HP xw4300 Service And Technical Reference Manual

4.31 System Board

To remove the system board:
1. Disconnect power from the system
and graphics cards
2. Disconnect all cabling from the system board.
NOTE: Make note of the cable connections before disconnecting them from the system board. Refer to
"Power Connections"
3. Press the release tab as shown in the following illustration.
4. Slide the board toward the front of the chassis and then lift it out of the unit.
To replace the system board:
1. Lay the system board back in the chassis slightly away from the rear of the chassis. The mounting hooks should
fall into the recesses of the tray so the tray lays flat on the chassis base.
NOTE: Be sure the system board connectors engage correctly with the rear I/O panel.
2. Slide the tray towards the rear of the chassis until the heat sink mounting holes line up.
3. Re-install the heatsink, cards, and cables
92 Removal and Replacement Procedures
(section
(section 4.19), and remove the system fan assembly
for more information.
4.2), open the access panel (section 4.9), remove all plug-in cards
(section 4.18).
section 4.23