HP COMPAQ NC4200 Maintenance And Service Manual page 144

2. Remove the four T8M2.0×5.0 screws 1 that secure the
system board to the notebook.
3. Remove the T8M2.0×7.5 screw 2 that secures the system
board spacer to the notebook.
4. Remove the system board spacer 3.
Removing the System Board Screws
Maintenance and Service Guide
Removal and Replacement Procedures
6–55