HP Compaq NX4820 Maintenance And Service Manual page 134

2. Position the computer with the rear panel toward you.
✎
Steps 3 through 9 apply only to HP Pavilion dv1400 models.
See steps 10 through 14 in this section for information on
removing the switch cover on HP Compaq nx4820 and
Compaq Presario V2400 models.
3. Remove the three silver PM2.0×5.0 screws that secure the
switch cover to the computer.
Removing the Switch Cover Screws, HP Pavilion dv1400
Models Only
Maintenance and Service Guide
Removal and Replacement Procedures
5–21