HP Compaq nc6220 - Notebook PC Maintenance And Service Manual page 156

Removal and Replacement Procedures
14. Lift the front edge of the system board 1 until the right/rear
corner is clear of the MultiBay II device shield 2.
15. Slide the system board 3 forward and remove it.
Removing the System Board Screws and Screw Locks
Reverse the above procedures to install the system board.
6–54 Maintenance and Service Guide