I'm just using one cpu air fan with no case fans. My i5-4690k is overclocked to 4.4 and I'm getting about 80C on prime95. IMO, you only need 2-3 case fans max. More case fans = more noise.
Normally air comes in from the front and goes out from the top and back.
I know, but I have already bought the fans, and want to make good use of them...
Despite their unnecessary use, what would the optimal way to set them up be?