HP ProBook 440 G4 Maintenance And Service Manual page 83

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3.
Lift the heat sink from the system board (7).
NOTE:
Thoroughly clean thermal material from the surfaces of the system board components (1)(3)
and the heat sink (2)(4) each time you remove the heat sink. All heat sink and processor spare part kits
include thermal material.
4.
UMA models: In the order indicated on the heat sink, loosen the 4 captive Phillips screws (1)–(4) that
secure the heat sink to the system board.
Component replacement procedures
73

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