Dell XPS M140 Service Manual page 66

14. Remove the palmrest (see Removing the Palm Rest).
15. Remove the two M2 x 3-mm screws securing the system board from the bottom of the computer.
1 M2 x 3-mm screws (2)
16. Turn the computer over so that the bottom is facing down and remove the M2.5 x 5-mm screw securing the
system board.
17. Disconnect the fan cable from the system board.
18. Disconnect the speaker cable from the system board.
19. Disconnect the modem cable from the system board.