I noticed that when I bought the case, the top fan is intake, the side fan is intake, and the front one is exhaust. I went ahead and bought another top fan (140 mm), a side fan (140 mm), and a front one to replace the 120 mm(140 mm). I would like to know what's the best way to set up the fans in this case , or any case anyway. I'm still new to PC building too and I just bought a 980 TI that's coming in the mail.