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138 Installing System Components
Replacing 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
Unpack the new power distribution board assembly.
2
Align the securing slots on the power distribution board with the tabs on
the chassis.
3
Pull the release tab slightly to the back of the system and slide the board
down till it snaps into place. See Figure 3-28.
4
Connect the system board and the I/O board to engage the interconnect
between the power distribution board and the I/O board:
a
Align the guide pins on one half of the connector with the slots on the
other half of the connector. See Figure 3-30.
b
Push the release levers inward until they lock into position. See
Figure 3-30.
5
Connect the cable to the power distribution board.
6
Replace the cooling fan assembly. See "Installing the Cooling Fan
Assembly" on page 104.
7
Replace the power supplies in the system. See "Installing a Power Supply"
on page 87.
8
Close the system. See "Closing the System" on page 77.
9
Reconnect the system to its electrical outlet and turn the system on,
including any attached peripherals.
book.book Page 138 Wednesday, February 17, 2010 6:17 PM