HP Pavilion dm4 Maintenance And Service Manual page 83

j. Bluetooth module removal (see
k. System board (see
Remove the fan/heat assembly (fan/heat sink appearance may vary):
NOTE: Steps 1 through 4 apply to computers with discrete subsystem memory on the system board.
Steps 5 through 7 apply to computers with UMA subsystem memory.
1. Turn the system board upside down.
2. Disconnect the fan cable from the system board.
3. Follow the sequence embossed on heat sink to loosen the six Phillips M2.5×7.0 captive screws (1)
that secure the fan/heat sink assembly to the system board.
NOTE: Due to the adhesive quality of the thermal material located between the fan/heat sink
assembly and system board components, it may be necessary to move the fan/heat sink assembly
from side to side to detach the assembly.
Bluetooth module on page
System board on page
68)
72)
Component replacement procedures
75