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138 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 3-26.
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 Redundant
Power Supply" on page 125.
2
Locate the power distribution board shroud cover and lift it out.
See "Removing the Cooling Shroud" on page 101.
3
Disconnect the power distribution cables from the system board
(see "System Board" on page 141) 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 3-26.
R310HOM.book Page 138 Thursday, March 4, 2010 1:03 AM