HP Compaq NC6140 Maintenance And Service Manual page 130

Removal and Replacement Procedures
4. Turn the computer right-side up with the front toward you.
5. Disconnect the TouchPad cable 1 from the system board.
6. Remove the two Torx8 T8M2.5×9.0 screws 2 that secure the
top cover to the computer.
Removing the Top Cover Screws, Part 2
6–40 Maintenance and Service Guide