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Installing a 1400-watt or 900-watt hot-swap power supply

Use this information to install a 1400-watt or 900-watt hot-swap power supply.

The following notes describe the type of power supply that the server supports and other information that you must consider when you install a hot-swap power supply:
  • To confirm that the server supports the power supply that you are installing, see Lenovo ServerProven website.
  • The server comes standard with one 900-watt (input voltage 110 or 220 V ac auto-sensing) hot-swap power supply or one 1400-watt hot-swap power supply (input voltage 110 or 220 V ac auto-sensing) depending on your model.
    Note
    Do not mix 110 V ac and 220 V ac input voltage power supplies in the server. It is not supported.
  • Do not mix 900-watt and 1400-watt power supplies in the server. It is not supported.
  • These power supplies are designed for parallel operation. In the event of a power-supply failure, the redundant power supply continues to power the system. The server supports a maximum of two power supplies.
  • Full N+N redundacy support is provided by two 1400-watt power supplies fed from a 220 V input source.
  • Limited N+N redundancy support is provided by two 900-watt power supplies fed from either a 110 V or 220 V input source, or by two 1400-watt power supplies fed from a 110 V source.
  • For the server to support two power supplies, you must install the optional Power Interposer for Redundant Power option or the optional Microprocessor and Memory Expansion Tray, if one is not installed in your model.
Statement 5
safety statement 5
CAUTION
The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also 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.

disconnect pwr cord
Statement 8
safety statement 8
CAUTION
Never remove the cover on a power supply or any part that has the following label attached.
hazardous label

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.

To install a hot-swap power supply, complete the following steps:

  1. Read the safety information and installation guidelines, see Safety and Installation guidelines.
  2. Touch the static-protective package that contains the power supply to any unpainted metal surface on the server; then, remove the power supply from the package and place it on a static-protective surface.
  3. If you are installing the power supply into an empty bay, remove the power-supply filler panel from the power-supply bay.
  4. Use one of the following procedures to install the power supply.
    1. To install a 1400-watt power supply, complete the following step:
      1. Grasp the handle on the rear of the power supply and slide the power supply forward into the power-supply bay until it clicks. Make sure that the power supply connects firmly into the power-supply connector.

        insert 1400 watt pwr supply

    2. To install a 900-watt power supply, complete the following steps:
      1. Insert the power-supply spacer into the left side (against the bay wall) of the power-supply bay and slide it in until it snaps into place on the tabs on the side of the bay.

        insert 900 watt pwr supply

      2. Grasp the handle on the rear of the power supply and slide the power supply forward into the power-supply bay (next to the spacer) until it clicks. Make sure that the power supply connects firmly into the power-supply connector
  5. Route the power cord through the cable hook-and-loop on the rear of the server so that it does not accidentally become unplugged.
  6. Connect the power cord for the new power supply to the power-cord connector on the power supply.
  7. Connect the other end of the power cord to a properly grounded electrical outlet.
  8. Make sure that the ac power LED on the power supply is lit, indicating that sufficient power is being supplied to the power supply through the power cord. During normal operation, both the ac and the dc power LEDs are lit. For any other combination of LEDs, see Power-supply LEDs. Make sure that no error LEDs are lit.
  9. Restart the server. Confirm that it starts correctly and recognizes the newly installed device, and make sure that no error LEDs are lit.