HP Compaq NC6110 Maintenance And Service Manual page 146

Removal and Replacement Procedures
2. Turn the computer upside down with the rear panel
toward you.
3. Remove the 13 Torx8 T8M2.0×9.0 screws that secure the top
cover to the computer.
Removing the Top Cover Screws, Part 1
6–40 Maintenance and Service Guide