HP EliteDesk 705 G4 Desktop Mini Hardware Reference Manual page 43

b. Place the fan assembly (1) on the graphics processor. Secure the fan assembly with the four screws
(2), and then connect the fan assembly cable (3) to the system board.
15. Replace the access panel.
For instructions, see
16. If the computer was on a stand, replace the stand.
17. Plug in the power cord and turn on the computer.
18. Lock any security devices that were disengaged when the computer cover or access panel was removed.
Replacing the computer access panel on page 10.
Installing an external antenna 37