Apple Logic Board - Manual (Page 17)

Xserve Logic Board - 17
3. Carefully align the screw holes on the replacement heatsink and processor with the
two guides, and lower the unit straight down over the guides until it touches the logic
board. (Figure 21)
4. To secure the processor to the logic board, press down gently on the top of the
heatsink cover in the area directly over the processor's connector.
Figure 21