HP xw4400 Service And Technical Reference Manual page 113

4. Slide the system board toward the front of the chassis and then lift it 2 out of the unit. .
Figure 4-58
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.
2. Slide the tray towards the rear of the chassis until the heat sink mounting holes line up.
3. Reinstall the CPU heatsink, cards, and cables.
ENWW
Removing the system board
Steps for removal and replacement of components 103