Dell PowerVault NX3500 Hardware Owner's Manual - Page 86

Power Distribution Board, Removing the Power Distribution Board

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Power Distribution Board The power distribution board is located in your system directly behind the power supply fan modules. This feature provides additional cooling to the power supplies through the power distribution shroud that routes airflow to the power supplies. See Figure 2-19. 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. 1 Remove the power supplies from the system. See "Removing a Power Supply" on page 77. 2 Locate the power distribution board shroud cover and lift it out. See "Removing the Cooling Shroud" on page 62. 3 Disconnect the power distribution cables from the system board (see "System Board" on page 89) and disconnect the fan cable connectors. 4 Remove the two screws securing the power distribution board to the chassis and then lift the board out. See Figure 2-19. 86 Installing System Components

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86
Installing System Components
Power Distribution Board
The power distribution board is located in your system directly behind the
power supply fan modules. This feature provides additional cooling to the
power supplies through the power distribution shroud that routes airflow to
the power supplies. See Figure 2-19.
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.
1
Remove the power supplies from the system. See "Removing a Power
Supply" on page 77.
2
Locate the power distribution board shroud cover and lift it out.
See "Removing the Cooling Shroud" on page 62.
3
Disconnect the power distribution cables from the system board
(see "System Board" on page 89) and disconnect the fan cable connectors.
4
Remove the two screws securing the power distribution board to the
chassis and then lift the board out. See Figure 2-19.