Dell Inspiron 3250, Service Manual, Page: 77 / 88

Replacing the power-supply
unit
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer . After working inside your
computer, follow the instructions in After working inside your
computer . For more safety best practices, see the Regulatory
Compliance home page at www.dell.com/regulatory_compliance.
Procedure
1 Slide the power supply towards the back of the chassis.
2 Align the screw holes on the power-supply unit with the screw holes on
the chassis.
3 Replace the screws that secure the power-supply unit to the chassis.
4 Route the power cables through the routing guide and connect the
power cables the system board.
5 Close the side-chassis.
Postrequisites
1 Replace the drive cage .
2 Replace the heat-sink assembly .
3 Replace the front bezel .
4 Replace the computer cover .
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