HP EliteDesk 800 Hardware Reference Manual page 31

7. Locate the WLAN module on the system board.
8. Disconnect both antenna cables (1) from the WLAN module.
NOTE: You may need to use a small tool, such as a pair of tweezers or needle-nose pliers, to
disconnect and connect the antenna cables.
9. Remove the screw (2) securing the WLAN module to the system board.
10. Grasp the WLAN module (3) by the sides and pull it out of the socket.
11. Insert the new WLAN module into the socket on the system board. Press the WLAN module connectors
firmly into the socket (1).
NOTE: A WLAN module can be installed in only one way.
12. Press the WLAN module down to the system board and use the included screw to secure the module (2).
Replacing the WLAN module 25