Prodigy M fan orientation

[JTai117]

Hi guys,
So ever since I assembled my pc about a month ago I have been trying to find the best fan configuration for my prodigy m. Currently I have my 230mm fan on the bottom sucking air up through the bottom, a 120mm fan on the top sucking in air and blowing air directly onto my gpu and my hyper 212 evo is drawing air through the heatsink and there's another 120mm fan on the back of the case blowing air out of my case.

I was wondering if I should turn my fans around so they're all sucking air into my case to create more positive pressure and if I do, which way should my cpu cooler fan be orientated?

Thanks.

 

[Brantyn Gerik]

positive pressure is alright for keeping dust out, but not great for letting out heat.

think of thermodynamics and convection, think about the way heat would naturally rise, and use this to figure out the best orientation to think of a good way for the air to flow. i find that intakes at the bottom and front blowing up, then exhaust at the top, and depending on cooler position, an intake at the back blowing directly on cpu cooler is good if you get a good strong top exhaust fan

so to recap, always have at least one exhaust at a higher point in the case, and intakes at the lower points in the case (as long as there is a gap between the bottom of your case and the floor of course (case has feet))

 

[JTai117]

Hmm. Ok. The gpu is inverted in my case though. So it'll be blowing air down the case.

 

[Brantyn Gerik]

if you have a reference cooler on the card, it acts as an intake and blows the hot air out the back. otherwise it blows the hot air down on the card, and it spreads out from the card, it does not blow down and through the solid pcb to the bottom of your case but it's one of those "nothing you can do" situations

 

[JTai117]

I have the acx cooling design from evga. So you reckon I should make the top the exhaust and make the back and bottom the intake?

 

[Brantyn Gerik]

The temp difference wont be huge, but that will yeild the best overall temps. however, if you can fit a big enough top exhaust, and your back case fan would blow directly on your cpu cooler, then i recommend using the back as an intake, and just the top as an exhaust (how i have it in my case, but i have 2 quality 140mm fans as my top exhausts