HP HPE ProLiant DL365 Gen10 Plus Maintenance And Service Manual page 112

Do not overtighten the screws as this might damage the system board or the processor socket.
13. Apply new thermal grease to the processor in the pattern shown in the following image. Use the full contents of the thermal grease
syringe.
14. Install the heatsink.
CAUTION: CAUTION:
To prevent mechanical damage or depositing oil on your hands or other contaminant to the heatsink contact
surface, hold the heatsink only by the edge of its base plate. Do not touch the heatsink fins.
CAUTION: CAUTION:
To prevent thermal failure or component damage, do not move the heatsink once the bottom of its base plate
touches the top of the processor. Excessive heatsink movement can cause the thermal grease to smear and become
uneven. Voids in the compound can adversely impact the transfer of heat away from the processor.
CAUTION: CAUTION:
Heatsink screws must be tightened and loosened in alternating sequence as shown on the heatsink label. Do not
overtighten the screws as this might damage the system board or the processor socket.
a. Position the heatsink on top of the processor, ensuring that it is properly seated before securing the screws.
b. Use a T-20 screwdriver to tighten the captive screws in the sequence specified on the heatsink label until fully seated.
Removing and replacing a processor 112