HP Pavilion dv3-4100 - Entertainment Notebook PC Maintenance And Service Manual page 73

Remove the system board:
1. Disconnect the following cables from the system board:
(1) Speaker cable
(2) Bluetooth module cable
(3) Display panel cable
2. Disconnect the following cables from the system board:
(1) Optical drive connector cable
(2) USB board cable
(3) Power cable
3. Loosen the captive Phillips screw (1) that secures the fan to the base enclosure.
Component replacement procedures 63