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 Locate the faulty fan indicated by the diagnostic software.
2 Turn off the system and all attached peripherals.
3 Open the system. See “Opening the System” on page 218.
4 Reseat the fan’s power cable.
5 Restart the system.
If the fan functions properly, close the system. See “Closing the System”
on page 219.
6 If the fan does not function, turn off the system and install a new fan.
See “Cooling Fans” on page 220.
7 Restart the system.
If the problem is resolved, close the system. See “Closing the System”
on page 219.
If the replacement fan does not operate, see “Getting Help” on page
310.
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