As written by those before me..
Mobos, RAMs, and proc fans all of them have different dimensions or size.
It is hard to say 100% if it is problematic to install or if it is problem free.
Most of the time, you won't face the problem installing mobo, extra fan and ram.
See the compatibility list if it exists and you can try to rotate the fan to avoid the problem.
The worst case is, you have to return the fan to the store and buy another one.
So don't be afraid to try.