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Installing System Components 95
2
Replace the two screws that secure the power distribution board assembly
to the bottom of the chassis.
3
Connect all the power cables. See Figure 3-21.
4
Replace the system cover. See "Closing the System" on page 59.
5
Replace the two screws on the right side of the chassis.
6
Replace the right side rail.
7
Reconnect the system and peripherals to their electrical outlets, and turn
on the system.
Cooling Fans
WARNING: The cooling fan can continue to spin for some time after the system
has been powered down. Allow time for the fan to stop spinning before removing it
from the system.
WARNING: Do not attempt to operate the system without the cooling fans.
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.
Removing a Cooling Fan Assembly
1
Turn off the system, including any attached peripherals, and disconnect
the system from its electrical outlet.
2
Open the system. See "Opening the System" on page 58.
3
Disconnect the three power cables from the backplane. See Figure 5-4.
4
Remove the single screw that secures the fan assembly to the chassis. See
Figure 3-22.
5
Slide the fan assembly slightly toward the front of the system and lift it
away from the system. See Figure 3-22.
book.book Page 95 Friday, November 8, 2013 11:29 AM