I have the COUGAR Spike mATX gaming tower, for reference. It comes with one 120mm fan, 2 side fan holders (?), a spot in the front for one, and a spot in the back. My motherboard has only one SYSFAN header, and I'm not gonna buy another fan right now anyway. So I've got 1 fan, and the spots I said. Where should the thing go? I have it as intake in the back right now- good or bad? Thanks!