NEC VERSA FX Service And Reference Manual page 60

Locate and remove the four screws that secure the main board in the system.
5.
Carefully lift the main board.
6.
Lift and remove the video/USB board.
7.
8. Disconnect the connector board from the main board.
9. Turn the main board over. Locate and remove the two screws that secure the modem board
to the main board.
A – Modem Board
Carefully disconnect the modem board by pulling it out of connector P3 on the main board.
10.
Disconnect the modem port cable from connector J1 on the modem board.
11.
3-16 Disassembly and Reassembly
Locating/Removing the main board screws
A – Screw
Locating/Removing the modem board screws
B – Screw