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Inspiron 3020 Small Desktop Service Manual

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Installing the power supply unit

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the power supply unit and provide a visual representation of the installation procedure.

Installing the power supply

Installing the power supply

Steps

  1. Align and slide the tabs on the power supply unit into the latches on the chassis.
  2. Align the screw holes on the power supply unit with the screw holes on the chassis.
  3. In a sequential order (1>2>3), replace the three screws (#6-32) to secure the power supply unit on the chassis.
  4. Route the power supply unit cables through the routing guides on the chassis.
  5. Connect the system-board power cable and the processor-power cable to the connectors on the system board.

Next steps

  1. Install the hard-drive and optical-drive cage.
  2. Install the 3.5-inch hard drive or 2.5-inch hard drive.
  3. Install the front cover.
  4. Install the left-side cover.
  5. Follow the procedure in After working inside your computer.

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