Dell PowerVault NX400, Owner'S Manual

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Installing The Power Distribution Board Shroud
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
NOTE: For proper seating of the power distribution shroud in the chassis, ensure that the cables inside the system
are routed through the cable securing latch.
1. Align the PDB shroud with the numbered fan bay and the arrow as the guide.
2. Lower the PDB shroud into the chassis so that the two tabs on the PDB shroud rest on the cooling fan bracket.
When firmly seated, the PDB shroud aligns flush with the power supply unit bracket and the arrow marked on the
shroud aligns with the arrow on the power supply bracket.
3. Close the system.
4. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
Power Distribution Board
Removing The Power Distribution Board
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
NOTE: The power distribution board is present only in systems that support redundant power supplies.
1. If installed, remove the front bezel.
2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and
peripherals.
3. Open the system.
4. Remove the power supplies from the system.
5. Remove the PDB shroud.
6. Disconnect the power distribution cables from the system board.
7. Disconnect the fan cable.
8. Remove the two screws securing the power distribution board to the chassis and lift the board out of the chassis.
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