Chapter 4: Upgrading Your Computer
3Unplug the heat sink fan cable from the system board.
Processor fan cable
4Loosen the four captive screws that secure the heat sink and fan assembly to the system board, then remove the assembly and place it on a stable surface with the flat surface of the heat sink (the side with the thermal grease) up. (The four screws cannot be completely removed.)
Screws (only two shown)
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