Dell Vostro 270s (Late 2012) - Manual (Page 22)

d) memory
e) drive cage
f) front bezel
g) fan shroud
h) cover
5. Follow the procedures in After Working Inside Your Computer .
Removing the Power-Supply Unit
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove:
a) cover
b) fan shroud
c) front bezel
d) drive cage
e) memory
f) expansion card
g) fan and heat sink
h) processor
i) system board
3. Remove the screws that secure the power-supply unit to the chassis and slide and remove the power-supply unit
away from the computer.
Installing the Power-Supply Unit
1. Slide the power-supply unit toward the back of the chassis.
2. Align the screw holes on the power-supply unit with the screw holes on the chassis.
3. Tighten the screws to secure the power-supply unit to the chassis.
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