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Vostro 3681 Service Manual

Removing the power-supply unit


  1. Follow the procedure in Before working inside your computer.
  2. Remove the side cover.
  3. Remove the front bezel.
  4. Remove the HDD/ODD bracket.
NOTE:Note the routing of all cables as you remove them so that you can route them correctly while you are replacing the power-supply unit.

About this task

The following images indicate the location of the power-supply unit and provides a visual representation of the removal procedure.

Removing the power-supply unit

Removing the power-supply unit

Removing the power-supply unit


  1. Lay the computer on the right side.
  2. Disconnect the power cables from the system board and remove them from the routing guides on the chassis.
  3. Remove the three (#6-32) screws that secure the power-supply unit to the chassis.
  4. Press the securing clip and slide the power-supply unit away from the back of the chassis.
  5. Lift the power-supply unit off the chassis.

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