The Silverstone GD05B case has a 120mm filtered opening below where the PSU goes that is designed to line up with a PSU fan and suck cold air in from the outside to cool the PSU. Would there be any issue if the PSU I'm planning on getting has a 135mm fan instead of a 120mm one? Obviously the fan would be larger than the opening, but I just want to make sure there isn't some reason why this would mess things up somehow.