HP Compaq Presario,Presario V4000 Maintenance And Service Manual page 176

Removal and Replacement Procedures
23. Turn the top cover upside down with the front toward you.
24. Remove the two Phillips PM2.5×7.0 screws 1 that secure
the system board to the top cover.
25. Use the hard drive connector 2 and fan frame 3 to lift the
system board straight up and remove it 4.
Removing the System Board, Compaq Presario V4000 Models
Reverse the above procedure to install the system board.
5–72 Maintenance and Service Guide