PSU fan small vent??

[Guest]

Hi, i recently bought an EVGA G2 650W PSU, My chassi is a Cooler Master Elite 430. The problem is, when I put the PSU with the fan down, the PSU fan is 140mm, but the PSU went on the bottom is only 120mm. I wonder if this is a problem, can I have the fan like that? If you have it with the fan upwards, it will steal air from my GPU. How should I do? It is also semi-passive, with the fan on Eco mode, it doesn't turn on on lower loads.

 

[Cons29]

i don't think that's an issue. 120mm is big, it's not like an 80mm