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Remove the power complex

Follow instructions in this section to remove the power complex. 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.
  • If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the top cover, or remove the chassis from the rack. See Remove the server from rack.
  • 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 the rear top cover. See Remove the rear top cover.
    3. Remove the front top cover. See Remove the front top cover.
    4. Remove the CPU complex. See Remove the CPU complex.
  2. Disconnect all the cables from the PSU interposer and the power distribution board.
  3. Remove the power complex.
    1. Unfasten the ten M3 screws marked with P (P1-P5) on both sides of the chassis.
    2. Lift the power complex out of the chassis.
    Figure 1. Power complex removal
    Power complex removal

After you finish

  1. Reinstall the replacement. See Install the power complex.
  2. Complete the parts replacement. See Complete the parts replacement.