HP Pavilion 17 Maintenance And Service Manual page 102

2. Remove the PCH heat sink (2).
NOTE:
and system board, it may be necessary to move the PCH heat sink from side to side to detach it.
The thermal material must be thoroughly cleaned from the surfaces of the PCH heat sink and
the PCH each time the PCH heat sink is removed. Replacement thermal material is included
with the PCH heat sink and system board spare part kits.
NOTE:
locations. A thermal pad is used on the PCA (1) and the PCH heat sink (2).
Reverse this procedure to install the PCH heat sink.
92 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
Due to the adhesive quality of the thermal material located between the PCH heat sink
The following illustration shows the PCH heat sink replacement thermal material