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OptiPlex 7090 Small Form Factor Service Manual

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Removing the power-supply unit

Prerequisites

  1. Follow the procedure in before working inside your computer.
  2. Remove the side cover.
  3. Remove the 2.5-inch hard-drive assembly.
  4. Remove the hard-drive and optical-drive bracket.

About this task

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

PSU removal step 1 image

PSU removal step 2 image

PSU removal step 3image

Steps

  1. Remove the optical-drive SATA cables from the retention clip on the support bracket.
  2. Remove the two screws (M6X32) and slide the support bracket out from the slot.
  3. Disconnect and unroute the power-supply cable from the routing guides on the chassis.
  4. Remove the three screws (M6X32) that secure the power-supply unit to the chassis.
  5. Press down on the securing clip to release the power supply from the chassis.
  6. Slide and lift the power supply from its slot on the chassis.

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