HP ProOne 400 23.8-inch G4 All-in-One Business PC - Page 45

7. Lift the heat sink out of the computer (3).
CAUTION: To reduce a degradation in thermal performance, be sure not to touch the thermal grease
on the surface of the processor or the heat sink.
UMA models
Discrete models
To replace the heat sink, reverse the removal procedures.
Heat sink 37