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G5 5090 Service Manual

PDF

Removing the power-supply unit

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the left-side cover.
  3. Remove the graphics card.
  4. Remove the 3.5-inch hard drive.
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.

Image: Removing the power-supply unit

Image: Removing the power-supply unit

Image: Removing the power-supply unit

Steps

  1. Lay the computer on the right side.
  2. Remove the two screws (#6-32) that secure the power-supply unit cover to the chassis.
    NOTE: Only the computer with clear doors are shipped with power-supply unit cover. This step is applicable only for computers shipped with power-supply unit cover.
  3. Slide and lift the power-supply unit cover off the power-supply unit.
  4. Remove the three screws (#6-32) that secure the power-supply unit to the chassis.
  5. Disconnect the power cables from the system board and remove them from the routing guides on the chassis.
  6. Press the securing clip and slide the power-supply unit away from the back of the chassis.
  7. Lift the power-supply unit off the chassis.
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