HP EliteDesk 800 G3 Desktop Mini, HP ProDesk 600 G3 Desktop Mini, HP ProDesk 400 G3 Desktop Mini - Maintenance and Service Guide

Internal WLAN antenna cable removal/installation
The antennas route from the WLAN module to the cable connectors on the front and the rear of the computer.
To install the antennas:
1. Prepare the computer for disassembly (Preparation for disassembly on page 20).
2. Remove the top cover (Top cover on page 21).
3. Remove the thermal sensor (Thermal sensor on page 24).
4. Remove the memory modules (Memory on page 25).
5. Remove the hard drive (Hard drive on page 29).
6. Remove the hard drive cable (Hard drive cable on page 31).
7. If your model is an EliteDesk 800 G3, remove the secondary fan (Secondary fan (EliteDesk 800 G3 65 W
models only) on page 32).
8. Remove the drive cage (Drive cage on page 33).
9. Remove the fan (Fan on page 42).
10. Remove the heat sink (Heat sink on page 43).
11. Remove the solid-state drive (if installed) (M.2 PCIe solid state drive (SSD) on page 34).
12. Remove the WLAN module (if installed) (WLAN module on page 36).
13. Remove the option board (if installed) (Option board on page 49).
14. Remove the system board (System board on page 50).
15. Remove the antenna cables from the clips in their routing paths along the chassis oor.
Internal WLAN antenna cable removal/installation 53