Apple Xserve (Logic Board with Processor/Heatsink Replacement) - Manual (Page 5)

Xserve Logic Board with Processor/Heatsink - 5
Dual-Slot Riser
1. Release the thumb screw that secures the card to the back of the server. (Figure 4)
2. Disconnect the riser from the logic board and remove the riser from the server.
Figure 4
Single-Slot Riser
1. Release the thumb screw that secures the card to the back of the server. (Figure 5)
Figure 5