HP EliteBook 840 G1 Service Manual page 95

2.
Following the 1, 2, 3, 4 sequence stamped into the heat sink, loosen the four captive Philllips
screws (1) – (4) that secure the heat sink to the system board, and then remove the heat sink (5).
NOTE:
Due to the adhesive quality of the thermal material located between the heat sink and
the system board components, it may be necessary to move the heat sink from side to side to
detach it.
3. The following illustrations show the replacement thermal material locations. The thermal material
must be thoroughly cleaned from the surfaces of the heat sink and the system board components
Component replacement procedures
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