Fan sink
CAUTION: The bond between the fan sink and the processor may be very tight.
If the computer will power on, before removing the fan sink, turn on the computer until it warms the fan sink.
Warming the heat sink lessens the bond between the fan sink and the processor, thereby making separating
them easier.
Make sure not to pull the processor out of the socket when you lift the fan sink, especially if you cannot warm
the fan sink prior to removal. Inadvertently removing the processor can damage the pins.
The fan sink is secured atop the processor with four captive Torx screws.
1. Prepare the computer for disassembly (Preparation for disassembly on page 20).
2. Remove the access panel (Access panel on page 21).
3. Remove the air duct (Air duct on page 47).
4. Disconnect the fan cable from the system board connector labeled CPUFAN (1), and then loosen the four
captive screws (2) that secure the fan sink to the system board tray.
CAUTION: Fan 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.
Fan sink 51
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