Dell S3220DGF Simplified Service Manual page 13

S6.Assembly the
Rear cover
13
Connect the cables
Paste the aluminum
foils
Use a Philips-head
screwdriver to screw 4
screws for locking Rear
.
cover
(No.1~4 screw
size=M4x10; Torque:
12±2kgf.cm)