Unit comes with two fans for a push/pull config but can also be configured with a single fan which is what I'll be doing for space (and sound) considerations. Just wondering what the optimum fan placement should be.
- RAD FAN Chassis (Exhaust)
- RAD FAN Chassis (Intake)
- FAN RAD Chassis (Exhaust)
- FAN RAD Chassis (Intake)
IMHO, it depends on the case -- the chassis, I mean. We've had several heated (pun!) discussions about this -- fairly recent threads.
Ideally, you'd want the H80 placed at an intake location. My personal opinion: you'd want the fan mounted as a "pusher," which would mean "2." More ideally, and again my personal opinion, it would be nice to have both a pusher and a puller.
But many cases aren't going to allow you that luxury.
Look for a thread over the last three months or so by WGusler and his project with a Corsair C70 case.
He finally settled on mounting the radiator at the rear exhaust. Ordinarily, this would've meant a pusher fan, radiator and chassis -- or "3."
Here's what WGusler did. He gutted a couple fans to harvest the shrouds or frames. If I remember, he mounted a fan as "pusher" on the radiator, making the case exhaust fan a "puller," and he inserted a shroud as a duct between this exhaust and the radiator.
And again, you might check that thread, to see if he also separated the pusher fan from the radiator with a second shroud.
Supposedly you would get better air velocity and air flow by leaving a gap between the fan hubs and the radiator; there would be no "dead spots."
For an i7-4790K processor at "nearly" stock settings -- probably with the turbo clock set to 4.4 Ghz for all cores -- he was getting 56C load temperatures with Intel Burn Test or similar. And I think his overclock to ~ 4.6Ghz pegged a maximum temperature at or just above 70C.
Does you got a couple extra fans of the right size that you don't mind cutting up? Think you could find some rather long machine screws?
Maybe you just want to use the stock fan bundled with the H80. But you'd still have an exhaust fan with your case. I'd think the standard mounting practice for the H80 would eliminate that fan. I'd keep it, and use a dual fan configuration as I described.