154 | Removing and Installing System Components
Figure 3-3. Inside the System with 2U Node
1
system board assembly (2)
2
power supply (2)
3
power distribution board (2)
4
cooling fan (4)
5
hard-drive bay
6
hard drive (12)
Cooling Fans

Removing a Cooling Fan

WARNING: Do not attempt to operate the system without the cooling fans.
WARNING: The cooling fan can continue to spin for some time after the system
has been powered down. Allow time for the fan to stop spinning before removing
it from the system.
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.