So, I'm building a gaming PC for a friend, and have 2 120mm Cooler Master Case fans that I'm going to be installing. I just don't know the best place for them. The case it will be installed in is an NZXT M59 Mid Tower case. My first plan was to mount both fans on the top of the case as exhaust fans. But then I remembered that the Hard Drives have no fans. Would it be better to have on fan as an intake fan so it's running air over the 1TB Seagate SATA drive?