HP EliteOne 800 G2 Hardware Reference Manual page 59

20. Push the latches toward the sides of the computer to lock the access panel in place (2).
21. If your computer model is a ProOne 400, use a flat blade or Torx screwdriver to turn the access panel
screws one quarter turn to the right to secure the access panel.
22. Install the stand.
See Attaching and removing a stand on page
23. Connect all cables to the computer.
See Connecting cables on page
24. Install the rear port cover.
See Installing the rear port cover on page
25. Lock any security devices that were disengaged when the access panel was removed.
26. Place the computer in the upright position.
27. Plug the AC power plug into a AC outlet.
18.
24.
27.
Replacing the RTC Battery 51