Remove the heat sink:
1.
In the order indicated on the heat sink, loosen the four captive Phillips screws (1) that secure the heat
sink to the computer.
2.
Remove the heat sink from the computer (2).
3.
Thoroughly clean the thermal material from the surfaces of the heat sink and the system board
components each time the heat sink is removed. Replacement thermal material is included with the
heat sink and system board spare part kits. The following illustration shows the replacement thermal
material locations.
Thermal material is used on the heat sink (1) and associated system board component (2).
Reverse this procedure to install the heat sink.
52
Chapter 6 Removal and replacement procedures for authorized service provider parts