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Installing System Components | 119
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, including any attached peripherals, and
disconnect the system from its electrical outlet.
2 Open the system. See "Opening the System" on page 117.
3 Disconnect the fan’s power cable from the fan-controller board.
Note the routing of the cable underneath the tabs on the chassis as you
remove them from the system. You must route these cables properly
when you replace them to prevent the cables from being pinched or
crimped.
4 Lift the fan out of the cooling-fan cage.
Figure 3-23. Removing and Installing a Cooling Fan
1 cooling-fan cage 2 cooling fans (4)