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Install a DWC PSU bracket

Use this information to install a DWC PSU bracket.

About this task
shock hazard
Electrical current from power, telephone, and communication cables is hazardous.

To avoid a shock hazard:

  • Connect all power cords to a properly wired and grounded electrical outlet/source.
  • Connect any equipment that will be attached to this product to properly wired outlets/sources.
  • When possible, use one hand only to connect or disconnect signal cables.
  • Never turn on any equipment when there is evidence of fire, water, or structural damage.
  • The device might have more than one power cord, to remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
shock hazard

Never remove the cover on a power supply or any part that has this label attached. Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician.


High touch current. Connect to earth before connecting to supply.
  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

  • The following notes describe the type of power supply that the enclosure supports and other information that you must consider when you install a power supply:
    • Make sure you follow the guidelines in PSU configuration.

    • For redundancy support, you must install an additional hot-swap power supply or DWC PSU, if one is not installed in your model.
    • Make sure that the devices that you are installing are supported. For a list of supported optional devices for the enclosure, see Lenovo ServerProven website.
  • If a DWC PSU filler is installed, remove the two screws; then, remove the DWC PSU filler.
    Figure 1. DWC PSU filler removal
    DWC PSU filler removal


  1. Make sure the stopper is securely installed in the enclosure.
    Figure 2. Stopper location
    Stopper location
  2. Install the DWC PSU bracket.
    1. Slide the DWC PSU bracket into the enclosure.
    2. Secure the screw located at WC 1.
    3. Secure the screw located at WC 2.
    Figure 3. DWC PSU bracket installation
    DWC PSU bracket installation
After you finish

Install the DWC PSU, see Install a DWC PSU.

Demo video

Watch the procedure on YouTube