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Install a power supply unit

Follow instructions in this section to install a power supply unit.

About this task

If you are replacing the existing power supply unit with a new one:

  • Use Lenovo Capacity Planner to calculate the required power capacity for what is configured for your server. More information about Lenovo Capacity Planner is available at:

    Lenovo Capacity Planner website

  • Ensure that the devices that you are installing are supported. For a list of supported optional devices for the server, go to: Lenovo ServerProven website

  • Attach the power information label that comes with this option onto the existing label near the power supply unit.

    Figure 1. Example power supply unit label on the top cover
    Example power supply unit label on the top cover

Attention

  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

  • Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-sensitive components in their static-protective packages until installation, and handling these devices with an electrostatic-discharge wrist strap or other grounding system.

Procedure

  1. Touch the static-protective package that contains the new part to any unpainted surface on the outside of the server. Then, take the new part out of the package and place it on a static-protective surface.
  2. Slide the new hot-swap power supply unit into the bay until it snaps into position.
    Figure 2. Installing the power supply unit
    Installing the power supply unit

  3. Connect the power supply unit to a properly grounded electrical outlet.

    • For AC power supply units:

      1. Connect one end of the power cord to the power connector on the power supply unit.

      2. Connect the other end of the power cord to a properly grounded electrical outlet.

    • For 240 V DC power supply units:

      1. Turn off the server.

      2. Connect one end of the power cord to the power connector on the power supply unit.

      3. Connect the other end of the power cord to a properly grounded electrical outlet.

    • For –48V DC power supply units:

      1. Use a slotted screwdriver to loosen the 3 captive screws on the power supply terminal block.

      2. Check the type label on the power supply block and each power cord.
        TypePSU terminal blockPower cord
        Input-Vin
        Ground

        		GND
        Input

        		RTN

      3. Face the groove side of each power cord pin upwards, and plug the pins into corresponding holes on the power block. Use the table above for guidance to ensure that the pins find correct slots.

      4. Tighten the captive screws on the power block. Ensure that the screws and cord pins are secured in place and no bare metal parts are shown.

      5. Connect the other end of the cables to a properly grounded electrical outlet, and ensure that the cable ends find correct outlets.

After you finish

  1. If you have adjusted the CMA to gain access to the power supply bay, properly readjust the CMA back in place.

  2. If the server is turned off, turn on the server. Ensure that both the power input LED and the power output LED on the power supply unit are lit, indicating that the power supply unit is operating properly.

Demo video

Watch the procedure on YouTube