Dell OptiPlex 5480 All-in-One Service Manual page 87

Steps
1. Slide and align the middle frame to the slots on the display-assembly base, then snap the middle frame into place on the display-
assembly base.
2. Replace the 17 screws (M3x5) to secure the middle frame to the display-assembly base.
Next steps
1. Install the display panel.
2. Install the antenna module.
3. Install the side-I/O board.
4. Install the PSU fan.
5. Install the PSU.
6. Install the microphones.
7. Install the power-button
8. Install the system board.
9. Install the camera assembly.
10. Install the speakers.
11. Install the rear-I/O bracket.
12. Install the bottom cover.
13. Install the wireless card.
14. Install the hard-drive.
15. Install the system-board
16. Install the back cover
17. Install the cable cover (optional).
18. Install the stand.
19. Follow the procedure in
board.
shield.
After working inside your computer.
Removing and installing components 87