Compaq V5100 - Manual (Page 152)

5–62 Maintenance and Service Guide
Removal and Replacement Procedures
2. Turn the system board upside down with the expansion port 2
toward you.
3. Remove the Phillips PM2.0×4.0 screw that secures the
fan/heat sink assembly to the system board.
Removing the Fan/Heat Sink Assembly Screws, Part 1