Dell OptiPlex 3010 (Mid 2012) - Manual (Page 18)

Removing the Heat Sink and Processor
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the cover .
3. Disconnect the heat sink assembly cable from the system board.
4. Loosen the captive screws that secure the heat sink assembly to the system board.
5. Lift the heat sink assembly upwards and remove it from the computer. Lay the assembly with the fan facing
downwards, and with the thermal grease facing upwards.
6. Press the release lever down and then move it outwards to release it from the retention hook that secures it.
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