Heat sink
IMPORTANT:
The bond between the heat sink and the processor may be very tight.
If the computer will power on, before removing the heat sink, turn on the computer until it warms the heat sink.
Warming the heat sink loosens the bond between the heat sink and the processor, thereby making separating
them easier.
Make sure not to pull the processor out of the socket when you lift the heat sink, especially if you cannot warm
the heat sink before removal. Inadvertently removing the processor can damage the pins.
The heat sink is secured with four Torx captive screws. Be sure to loosen and tighten nthe screws in the order
indicated on the heat sink.
Before removing the heat sink, follow these steps:
1.
Prepare the computer for disassembly (
Preparation for disassembly on page 16
2.
Remove the access panel
.
3.
Remove the processor fan
.
Remove the heat sink:
1.
In the order indicated on the heat sink, loosen the four Torx captive screws (1).
2.
Remove the heat sink (2).
IMPORTANT:
Be sure to loosen the screws in the order indicated by the numbers stamped on the heat
sink.
IMPORTANT:
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.
IMPORTANT:
Heat sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly
seat the heat sink on the processor to avoid damage that could require replacing the system board.
To replace the heat sink, reverse the removal procedures.
Heat sink
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