HP Pavilion 14 Maintenance And Service Manual page 80

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 optical drive connector cable.
70 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