HP DM4 - Manual (Page 79)

g. Display assembly (see Display assembly on page 56 )
h. USB board (see USB board on page 63 )
i. Power connector cable (see Power connector cable on page 64 )
j. Bluetooth module (see Bluetooth module on page 66 )
1. Turn the computer upright with the left side toward you.
2. Disconnect the optical drive connector cable (1) from the system board.
3. Remove the three Phillips M2.5×5.0 screws (2) that secure the system board to the computer.
4. Loosen the captive screw in the fan sink that secures the system board (3).
5. Lift the right side of the system board (4).
6. Release the system board by sliding it to the right at an angle (5) until the connectors on the left
side of the system board clear the base enclosure, and then remove the system board.
Reverse the preceding procedure to install the system board.
Component replacement procedures 71