HP VECTRA VL800 - Manual (Page 46)

2 Installing and Replacing Hardware Parts in Your PC
Replacing the Processor
46
Installing the New Processor
1 First ensure the processor is correctly oriented, then carefully lower the
new processor into place
. When the processor is fully inserted, close the
ZIF lever.
2 Carefully remove all thermal bonding material from the underside of the
heatsink.
3 Remove the two paper protectors from the thermal interface material
then affix it to the top of the processor.