Dell OptiPlex 9010 (Mid 2012) - Manual (Page 28)

Removing the Heat Sink
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the:
a. cover
b. front bezel
c. drive cage
3. Press the clip to release and disconnect the heat-sink assembly cable from the system board.
4. Release the I/O Board/FlyWire cable from the routing channel on the heat sink.
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