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158 Troubleshooting Your System
Troubleshooting a Fan
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
Open the system. See "Opening the System" on page 76.
CAUTION: The cooling fans are hot-swappable. To maintain proper cooling while
the system is on, only replace one fan at a time.
2
Locate the faulty fan indicated by the LCD panel or the diagnostic
software.
3
Remove and reseat the fan. See "Removing a Cooling Fan" on page 101
and "Installing a Cooling Fan" on page 103.
NOTE: Wait at least 30 seconds for the system to recognize the fan and
determine whether it is working properly.
4
If the problem is not resolved, install a new fan. See "Removing a Cooling
Fan" on page 101 and "Installing a Cooling Fan" on page 103.
If the replacement fan is working properly, close the system. See "Closing
the System" on page 77.
If the replacement fan does not operate,
see "Getting Help
" on page 185
.
book.book Page 158 Wednesday, February 17, 2010 6:17 PM