Swapping out a power supply

Hot-swapping a power supply when replacing a chassis involves turning off, disconnecting, and removing the power supply from the old chassis and installing and connecting it on the replacement chassis.


  1. If you are not already grounded, properly ground yourself.
  2. Turn off the power supply and disconnect the power cables:
    1. Turn off the power switch on the power supply.
    2. Open the power cable retainer, and then unplug the power cable from the power supply.
    3. Unplug the power cable from the power source.
  3. Squeeze the latch on the power supply cam handle, and then open the cam handle to fully release the power supply from the mid plane.
    If you have an AFF C190 system, a plastic flap within the now empty slot is released to cover the opening and maintain air flow and cooling.
  4. Use the cam handle to slide the power supply out of the system.
    When removing a power supply, always use two hands to support its weight.
  5. Repeat the preceding steps for any remaining power supplies.
  6. Using both hands, support and align the edges of the power supply with the opening in the system chassis, and then gently push the power supply into the chassis using the cam handle.
    The power supplies are keyed and can only be installed one way.
    Attention: Do not use excessive force when sliding the power supply into the system. You can damage the connector.
  7. Close the cam handle so that the latch clicks into the locked position and the power supply is fully seated.
  8. Reconnect the power cable and secure it to the power supply using the power cable locking mechanism.