Power Supply Unit; Removing Power Supply Unit Or Psu - Dell W7M79 Service Manual

4 Install the:
a Hard drive and optical drive module
b HDD assembly
c Front bezel
d Side cover
5 Follow the procedure in

Power supply unit

Removing power supply unit or PSU

1 Follow the procedure in
2 Remove the:
a Side cover
b Front bezel
c HDD assembly
d Hard drive and optical drive module
e Heat sink fan
56 Removing and installing components
After working inside your computer.
Before working inside your computer.