HP Compaq nw9440 - Mobile Workstation Maintenance And Service Manual page 171

3. Remove the Torx8 T8M2.5×7.0 screw 1 that secures the
system board to the base enclosure.
4. Use the optical drive connector 2 to lift the right side of the
system board until it rests at an angle.
5. Slide the system board 3 to the right at an angle until it clears
the base enclosure.
Removing the System Board
Maintenance and Service Guide
Removal and Replacement Procedures
5–71