HP ProBook 4310s Maintenance And Service Manual page 82

Removal and replacement procedures
3. Turn the computer right-side up, with the front toward you.
4. Disconnect the power connector cables 1 from the system board.
5. Release the power connector cables from the clips 2 and routing channel built into the top cover.
6. Disconnect the network cable 3 from the system board.
7. Release the network cable from the clips 4 and routing channel built into the top cover.
8. Remove the five slotted Torx T8M2.5×7.0 screws 1 and the Torx T8M2.5×6.0 screw 2 that secure the top
cover to the base enclosure.
Maintenance and Service Guide 4–37