HP Pavilion dv4 Maintenance And Service Manual page 89

Remove the heat sink:
1. Turn the system board upside down, with the front toward you.
2.
Loosen the captive screws (1) that secure the heat sink to the system board.
NOTE: The number of screws used to secure the heat sink to the system board varies by
computer model.
NOTE: Due to the adhesive quality of the thermal material located between the heat sink and
system board components, it may be necessary to move the heat sink from side to side to
detach it.
3. Remove the heat sink (2).
The following illustration shows the heat sink removal process on a computer model equipped with
an AMD processor and a graphics subsystem with discrete memory.
The following illustration shows the heat sink removal process on a computer model equipped with an
AMD processor and a graphics subsystem with UMA memory.
Component replacement procedures
81