User`s guide

26 - Xserve Take Apart
Heatsink, Xserve
WARNING: Whenever you remove the heatsink, before reinstalling it, you must replace
the thermal grease on the MPU. To replace the grease, do the following:
• Using the alcohol pad included with the replacement part or kit, clean off any used
thermal grease from the MPU and the bottom of the heatsink.
• Using the thermal grease included with the replacement part or kit, apply one dot of
fresh grease to the middle of the MPU (or both MPUs if the server is a dual processor).
• Spread the grease evenly across the MPU(s) to a thickness of approximately 1 mm.
• Carefully align the posts on the heatsink with the holes in the processor card, and
lower the heatsink straight down onto the processor.
• To ensure the grease spreads evenly over the processor, lightly tighten the screws in
the order indicated below.
• Again tighten the screws in the order indicated to affix the heatsink securely to the
processor.
• Replace the heatsink duct on the heatsink.