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Heat sink
Description Spare part number
Heat sink 587456-001
The heat sink is secured by four Torx screws. It does not have an attached fan.
1. Prepare the computer for disassembly (
Preparation for disassembly on page 141).
2. Remove the access panel (
Access panel on page 142).
3. Lift the front fan up and place it on top of the optical drive to access the front bezel release tabs.
You do not need to disconnect the fan cable from the system board.
4. Loosen the four Torx T15 screws that secure the heat sink to the system board, and then lift the
heat sink from the system board.
CAUTION: Heat sink retaining screws should be removed in diagonally opposite pairs (as in an
X) to even the downward forces on the processor to avoid damage that could require replacing
the system board.
5. Lay the heat sink on its top in a safe area to prevent the thermal grease from contaminating the
work surface.
If reusing the existing heat sink go to step 1.
Heat sink
157