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HP ProLiant ML570 G3 Server - Replacing the Power Supply

Installing redundant hot-plug power supply

The server supports a second hot-plug power supply to provide redundant power to the system in the event of a failure in the primary power supply. The second hot-plug power supply can be installed or replaced without powering down the server.
CAUTION: If only one power supply is installed, do not remove the power supply unless the server has been powered down. Removing the only operational power supply will cause an immediate power loss.
NOTE: To remove or replace the primary hot-plug power supply, use the T-15 Torx screwdriver provided with the server to remove the shipping screw. It is located just under the port-colored plastic handle of the power supply unit.
To install the component:
  1. Remove the power supply blank in the secondary hot-plug power supply bay (Figure 1).

    Figure 1: Removing the power supply blank

    1 - Open latch
    2 - Remove power supply blank
  2. Slide the hot-plug power supply into the server until it connects with the backplane (Figure 2).

  3. Close the latch (Figure 2).

    Figure 2: Installing the power supply

    1 - Slide hot-plug power supply into the server
    2 - Close latch
  4. Connect the power cord to the redundant power supply.

  5. Secure the power cords to the retaining clip.

  6. Connect the power cord to the power source.

  7. Be sure that the power supply LED is green. (This indicates AC power is available to the power supply)

  8. Be sure that the front panel external health LED is green. (This indicates internal components are getting power)

    Click here for more information on "Power supply LEDs"

NOTE: For maximum server availability, be sure that the two power supplies are powered by separate AC power sources.

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Removing redundant hot-plug power supply

To remove the component:
  1. Unclip and disconnect the power cord from the power supply.

  2. Push the ejector button and open the latch.

  3. Slide the power supply out of the server.

To replace the component, reverse the removal procedure.
NOTE: If the server will be shipped to another location after configuration, install a shipping screw into each power supply.

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Installing power backplane

To install the component:
  1. Perform all the steps to remove the system board ( Click here for information on "Removing system board" ).

  2. Remove the power supplies ( Click here to go to the "Removing the redundant hot-plug power supply" section above ).

  3. Feed cables in through opening of chassis.

  4. Set the power backplane in place about a quarter of an inch forward.

  5. Push it back to lock on to standoffs.

  6. Tighten the thumbscrew.

NOTE: The installation procedure is non-hot plug.

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Removing power backplane

To remove the component:
  1. Remove the system board ( Click here for information on "Removing system board" ).

  2. Remove the power supplies ( Click here to go to the "Removing the redundant hot-plug power supply" section ).

  3. Loosen the thumbscrew (Figure 3).

  4. Slide the backplane forward to dislodge it from the standoffs (Figure 3).

    Figure 3: Removing the power backplane

    1 - Loosen thumbscrew
    2 - Remove power backplane
  5. Lift the backplane and cables out of the chassis.

  6. Remove the power backplane.

To replace the component, reverse the removal procedure.
NOTE: The removal procedure is non-hot plug.

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