Heat sink
The heat sink is secured with four captive Torx screws. Be sure to remove and replace the screws in the order indicated on the heat sink.
1.Prepare the computer for disassembly (Preparation for disassembly on page 121).
2.Remove the access panel (Access panel on page 122).
3.In the order indicated on the heat sink, loosen the four captive Torx screws (1), and then lift the heat sink out of the computer (2).
CAUTION: Be sure the loosen the screws in the order indicated by the numbers stamped on the heat sink.
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.
To replace the heat sink, reverse the removal procedures.
136 Chapter 6 Removal and replacement procedures – desktop mini (DM) chassis