Disconnecting and connecting power cords

Steps to disconnect and connect existing power cords to the server.

Before you begin

Prerequisites for removing the power supply unit
  • The server is shipped with two power supply by default. In this case, the power supply is hot pluggable and redundant.
  • Ensure that you power off the server and disconnect all the power cords and network cables before you remove the power supply unit.
  • Ensure that you put the node into maintenance mode. For more about node maintenance, see Administering the node.
  • Ensure that you install an additional hot-swap power supply to support redundancy.
  • Ensure that you wear an ESD wrist strap when you remove the power supply unit.
  • Ensure that you handle the component carefully and include more than one qualified person to perform the task if the component weight is more than 18 kg (40 lb).
Prerequisites for replacing the power supply unit
  • The server is shipped with only one power supply by default. In this case, the power supply is non-hot swap.
  • Ensure that you power off the server and disconnect all the power cords and network cables before you replace the power supply unit.
  • Ensure that you put the node into maintenance mode. For more about node maintenance, see Administering the node.
  • Ensure that you install an additional hot-swap power supply to support redundancy.
  • Ensure that you wear an ESD wrist strap when you replace the power supply unit.
  • Ensure that you handle the component carefully and include more than one qualified person to perform the task if the component weight is more than 18 kg (40 lb).

Procedure

  1. Important:
    • Ensure that all power cables are properly connected when connecting power to the product. Connect all power cords to a properly wired and grounded electrical outlet for the racks with AC power. Ensure that the outlet supplies proper voltage and phase rotation according to the PDU or system rating plate.
    • If IBM supplied the power cords, then connect power to this unit only with the IBM provided power cord.
    • The product might be equipped with multiple power cords.
    Disconnect and connect the power cords in the specified order.
    1. Ensure that the mating connector of the power supply is free of any dirt or obstacles.
    2. For AC power, remove the power cords from the outlets.
    3. Unplug the power cord from the power supply.
  2. Connect the power cord as follows:
    1. Connect the power cord to the power supply.
    2. For AC power, attach the power cords to the outlets.