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128 Installing System Components
Removing a Non-Redundant Power Supply
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
Turn off the system and all attached peripherals.
2
Disconnect the power cable from the power source.
3
Disconnect the power cable from the power supply and remove the Velcro
straps that bundle and secure the system cables.
NOTE: You may have to unlatch and lift the optional cable management arm if
it interferes with power-supply removal. For information about the cable
management arm, see the system’s rack documentation.
4
Open the system. See "Opening the System" on page 78.
5
Disconnect all the power cables from the power supply to the system
board, hard drives and optical drive. See Figure 3-22.
6
Loosen the screw securing the power supply to the chassis and lift the
power supply to remove it from the chassis. See Figure 3-22.
R310HOM.book Page 128 Thursday, March 4, 2010 1:03 AM