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Heat sink
The heat sink is secured atop the processor with four captive Torx screws. The heat sink does not
include a fan.
1. Prepare the computer for disassembly (
Preparation for Disassembly on page 87).
2. Remove the access panel (
Computer Access Panel on page 95).
3. Remove the baffle (
Baffle on page 128).
4. Remove the chassis fan (
Front Fan Assembly on page 129).
5. Loosen the four captive screws that secure the heat sink to the system board tray.
CAUTION: Heat sink retaining screws should be removed in diagonally opposite pairs (as in
an X) to 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.
6. Lift the heat sink from atop the processor and set it on its side to keep from contaminating the
work area with thermal grease.
Figure 6-60 Removing the heat sink
When reinstalling the heat sink, make sure that its bottom has been cleaned with an alcohol wipe and
fresh thermal grease has been applied to the top of the processor.
CAUTION: 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.
Failure to install the baffle may cause the computer to overheat.
134 Chapter 6 Removal and Replacement Procedures Small Form Factor (SFF) Chassis