WARNING: Opening or removing the system cover when the system is on may expose you to a risk of electric shock. Exercise utmost care while removing or installing cooling fans.
WARNING: Do not operate the system without the cooling fans or the cover.
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.
CAUTION: The cooling fans are hot-swappable. To maintain proper cooling while the system is on, replace only one fan at a time.
Removing A Cooling Fan:
Open the system.
Press the release tab and lift the fan out of the cooling-fan assembly.
Installing The Cooling Fan:
Align the connector on the fan with the fan connector on the system board.
Lower the fan into the cooling fan assembly until the release tab snaps into place.
Close the system.