HP Compaq nx6325 Maintenance And Service Manual page 113

Removal and Replacement Procedures
✎
The thermal paste and thermal pads should be thoroughly
cleaned from the surfaces of the heat sink 1 and system board
components 2 each time the heat sink is removed. Thermal
paste and pads are included with the heat sink and all processor
spare part kits.
Thermal Paste and Pad Locations
Reverse the above procedure to install the heat sink.
Maintenance and Service Guide 5–23