Heat sink
The heat sink is secured with four captive Torx screws.
1. Prepare the computer for disassembly (Preparation for disassembly on page 20).
2. Remove the top cover (Top cover on page 21).
3. Remove the fan (Fan on page 37).
4. In the order indicated on the heat sink, loosen the three captive Torx screws, and then lift the heat sink
out of the computer.
CAUTION: Be sure the loosen the screws in the order indicated by the numbers stamped on the heat
sink.
CAUTION: To reduce a degradation in thermal performance, be sure not to touch the thermal grease
on the surface of the processor or the heat sink.
To replace the heat sink, reverse the removal procedures.
When replacing the heat sink, be sure to install thermal pads as shown in the following image:
Heat sink 43
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