HP Compaq nc6000 - Notebook PC Maintenance And Service Manual page 122

Removal and Replacement Procedures
3. Lift the left side of the heat sink up 1 until the thermal grease
bond between the heat sink and the processor disengages.
4. Slide the heat sink forward 2 until the cooling fins 3 clear
the top cover.
5. Lift the heat sink straight up to remove it.
Removing the Heat Sink
5–36 Maintenance and Service Guide