Dell R420xr Personal Computer User Manual


 
Removing A Cooling Fan
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.
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: Do not operate the system with the cover removed for a duration exceeding five
minutes.
NOTE: The procedure for removing each fan is identical.
1. Turn off the system, including any attached peripherals, and disconnect the system from its electrical
outlet.
2. Open the system.
3. Remove the cooling shroud or power distribution board shroud as applicable.
4. Disconnect the fan's power cable from the power cable connector on the system board or power
distribution board as applicable.
5. Lift the fan out of the cooling-fan bracket.
Figure 19. Removing and Installing a Cooling Fan
1. cooling fan 2. power cable connector
3. cooling-fan bracket
52