HP Compaq nx8220 Maintenance And Service Manual page 137

2. Remove the two T8M2.0×4.0 screws 1 that secure the
modem board to the system board.
3. Lift the right side of the modem board 2 to disconnect it
from the system board.
4. Disconnect the modem cable 3 from the modem board.
5. Remove the modem board.
Removing the Modem Board
Reverse the above procedure to install the modem board.
Maintenance and Service Guide
Removal and Replacement Procedures
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