HP Probook 5310m Maintenance And Service Manual page 69

Removal and replacement procedures
Remove the system board:
1. Turn the computer upside down, with the front toward you.
2. Disconnect the SD Card Reader board cable from the system board.
3. Turn the computer display-side up, with the front toward you.
4. Open the computer as far as possible.
5. Disconnect the speaker cable 1 from the system board.
6. Disconnect the display panel cable 2 from the system board.
7. Release the ZIF connector 3 to which the power button board board cable is attached, and then disconnect the
cable from the system board.
8. Disconnect the power cable 4 from the system board.
Maintenance and Service Guide 4–33