HP EliteDesk 705 G3 Hardware Reference Manual page 35

16. Insert a Phillips screwdriver in each knock-out feature and rotate to remove the blank.
17. Feed the external antenna cable through each hole and screw the antenna into position.
18. Connect the external antenna cables to the WLAN module.
19. Press the hood sensor (1) firmly into place.
20. Set the hard drive cage (2) into the chassis.
Installing an external antenna 29