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Remove the PSU cage

Follow instructions in this section to remove the PSU cage. The procedure must be executed by a trained technician.

About this task

Attention
  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.
  • Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.
  • Two people and one lifting device on site that can support up to 400 lb (181 kg) are required to perform this procedure. If you do not already have a lifting device available, Lenovo offers the Genie Lift GL-8 material lift that can be purchased at Data Center Solution Configurator. Make sure to include the Foot-release brake and the Load Platform when ordering the Genie Lift GL-8 material lift.

Procedure

  1. Make preparation for this task.
    1. Remove all the power supply units. See Remove a hot-swap power supply unit.
    2. Remove all the front fans. See Remove a front hot-swap fan.
    3. Remove all the 2.5-inch hot-swap drives and the drive bay fillers (if any) from the drive bays. See Remove a 2.5-inch hot-swap drive.
    4. Pull the 8U GPU shuttle out of the chassis, and place it onto the lift platform. See Remove the 8U GPU shuttle.
    5. Remove the power complex. See Remove the power complex.
  2. Remove the PSU interposer.
    1. Pull out the two plungers.
    2. Rotate the two release latches to disengage the PSU interposer from the power distribution board.
    3. Grasp the PSU interposer by its edges and carefully pull it out of the power complex.
      Figure 1. PSU interposer removal
      PSU interposer removal
  3. Remove the two cable retainers from the power distribution board.
    1. Unfasten the two screws to lift the cable retainer out of the power distribution board.
    2. Repeat to remove the other cable retainer.
      Figure 2. Cable retainer removal
      Cable retainer removal
  4. Unfasten the ten screws to remove the power distribution board from the PSU cage.
    Figure 3. Power distribution board removal
    Power distribution board removal

After you finish

If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.