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Inspiron 3891 Service Manual

PDF

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 image(s) indicate the location of the power-supply unit and provides a visual representation of the installation procedure.

Installing the power supply 1

Installing the power supply 2

Steps

  1. Route the power-supply unit cables into the routing guides on the chassis.
  2. Connect the power-supply unit cables to the two connectors on the system board.
    NOTE The power-supply unit cables are connected to the system board at two locations and supply power to the following components at the two locations:
    • Processor
    • System board
  3. Place and slide the power-supply unit into its slot on the chassis.
  4. Replace the three screws (6-32) that secure the power-supply unit to the chassis.
  5. Place the computer in an upright position.

Next steps

  1. Install the left-side cover.
  2. Follow the procedure in After working inside your computer.

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