Removal and Replacement Procedures92
4.31 System Board
To remove the system board:
1. Disconnect power from the system (section 4.2), open the access panel (section 4.9), remove all plug-in cards
and graphics cards (section 4.19), and remove the system fan assembly (section 4.18).
2. Disconnect all cabling from the system board.
NOTE: Make note of the cable connections before disconnecting them from the system board. Refer to section 4.23
“Power Connections” for more information.
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
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