Dell OptiPlex 755 User Manual page 254

4 Replace the hard drive fan:
Plug the fan into the computer.
a
Align the four side tabs and release tab on the fan with the five corresponding slots on the hard
b
drive bracket.
Slide the release tab beneath the metal housing covering its slot, and then slide the fan towards
c
the back of the computer.
Replace the screw to secure the fan release tab to the hard drive bracket.
d
254
Drives