HP COMPAQ NC2400 Maintenance And Service Manual page 139

4. Turn the computer right-side up with the front toward you.
5. Remove the Phillips PM2.0×4.0 screw 1 and the two Torx8
T8M2.5×7.0 screws 2 that secure the top cover to the
computer.
Removing the Top Cover Screws, Part 2
Maintenance and Service Guide
Removal and Replacement Procedures
5–47