I've been thinking about buying the Lancool 207 but it got me wondering about the fan placement, it already comes with 4 (2 front 2 bottom), I'll obviously put one in the back but it'll still leave me with 3 fans from my current build, should I put all 3 at the top or replace the two fans at the bottom? 7 intake fans sounds like an overkill. for reference my current fans are the Corsair's AF120 Slim.