HP Compaq nx9600 Maintenance And Service Manual page 141

2. Disconnect the fan cable from the system board 1.
3. According to the 1, 2, 3, 4 sequence stamped into the heat
sink module, loosen the four PM2.0×12.0 spring-loaded
shoulder screws 2 that secure the heat sink module to the
system board.
4. Lift the heat sink module and remove it 3.
✎
Due to the adhesive quality of the thermal paste located
between the heat sink module and processor, it may be
necessary to move the module from side to side to detach the
module from the processor.
Removing the Heat Sink Module
Reverse the above procedure to install the heat sink module.
Maintenance and Service Guide
Removal and Replacement Procedures
5–61