HP EliteDesk 800 Hardware Reference Manual page 36

18. Match the label on each antenna cable to the corresponding connector on the WLAN module and attach
the antennas (3) to the connectors.
19. Set the hard drive cage (1) into the chassis.
20. Secure the hard drive cage to the chassis with the three screws (2).
21. If your model is an EliteDesk 800 65W, replace the secondary fan in the hard drive cage.
a. Set the fan in place in the hard drive cage (1).
b. Fasten the three screws (2) to secure the fan to the chassis.
30 Chapter 3 Hardware upgrades