Dell Vostro 3480 Service Manual page 34

4 Align the screw holes on the hard drive assembly with the screw holes on the palm rest and keyboard assembly [1].
5 Replace the four (M2x3) screws that secure the hard drive assembly to the palm rest and keyboard assembly [2].
6 Connect the hard drive cable to the system board and close the latch to secure the cable [3].
Next steps
1 Replace the battery
2 Replace the base cover
3 Replace the SD memory card
4 Follow the procedure in
34 Removing and installing components
after working inside your computer