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Heat sink
IMPORTANT:
If the computer will turn on, before removing the heat sink, turn on the computer until it warms the heat sink.
Warming the heat sink lessens 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 prior to removal. Inadvertently removing the processor can damage the pins.
The heat sink is secured atop the processor with four captive Torx screws.
1.
Prepare the computer for disassembly
2.
Remove the access panel
3.
Remove the fan
4.
Loosen the four captive screws (1) that secure the heat sink to the system board tray.
IMPORTANT:
even the downward forces on the processor. This is especially important as the pins on the socket are very
fragile and any damage to them may require replacing the system board.
5.
Lift the heat sink from atop the processor (2) and set it on its side to keep from contaminating the work
area with thermal grease.
Reverse the removal procedures to install the heat sink.
When reinstalling the heat sink, be sure that its bottom has been cleaned with an alcohol wipe and fresh thermal
grease has been applied to the top of the processor.
IMPORTANT:
seat the fan sink on the processor to avoid damage that could require replacing the system board.
The bond between the heat sink and the processor may be very tight.
(Access panel on page
(Fan on page
40).
Heat sink retaining screws should be removed in diagonally opposite pairs (as in an X) to
Heat sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly
(Preparation for disassembly on page
18).
17).
Heat sink
41
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