how?Why can't it go the other way?
With the fan intake to the outside of the case?
the grate and fan at the back is exhaust. The other end that you see here is Intake.https://ibb.co/4P1nDvL
is tha huge fan on psu intake?
another pic.I'm having a hard time visualizing the whole thing.
Is this PSU mounted at the top of the case?
If so, is there a grate there for air flow?
If NOT, then the way you have it is the only way it can go.