Dell Inspiron 3470, Service Manual

Page: 51 / 82

Removing 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 .
Topics:
• Prerequisites
• Procedure
Prerequisites
1 Remove the computer cover .
2 Remove the front bezel .
3 Follow the procedure from step 1 to step 6 in “ Removing the optical drive ”.
Procedure
1 Press the securing clip and disconnect the power-supply unit cable (ATX_CPU) from the system board.
2 Press the securing clip and disconnect the power-supply unit cable (ATX_SYS) from the system board.
3 Note the power-supply unit cable routing and remove the power-supply unit cable from the routing guides on the chassis.
4 Remove the three screws (#6-32xL6.35) that secure the power-supply unit to the chassis.
28
Removing the power-supply unit 51