3. Remove the fan (3) from the computer.
To install the fan, reverse the removal procedure.
Heat sink
To remove the heat sink, use this procedure and illustration.
Before removing the heat sink, follow these steps:
1. Prepare the computer for disassembly (see Preparation for disassembly on page 20).
2. Remove the access panel (see Access panel on page 21).
3. Remove the fan duct (see Fan duct on page 47).
Remove the heat sink:
1. Loosen the four Torx screws (1) that secure the heat sink to the system board.
2. Remove the heat sink (2) from the computer.
Heat sink
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