Question 2 intake 2 exhaust vs 3 intake 1 exhaust

[zaman25]

I know this has been asked alot and I did check the search.

I just dont know if 1 exhaust can cope with 3 intake fans. Is there really that much dust buildup in 2+2 configuration?

Thanks

 

[bmockeg]

Depends on your fans. You can get fans that pull in more than the exhaust and still have positive pressure with 2 and 2. I have 2 intake and three exhaust due to two 280mm radiators and all my stuff stays nice and cool. Dust isn’t that big of an issue if you spray canned air occasionally.

 

[Phaaze88]

That whole positive/negative pressure thing isn't very important... unless your case is vacuum-sealed.
Dust is going to accumulate regardless, just clean the case out a few times a year. I do it once a month-every other month... perhaps a bit overkill.

That said, 2:2 fan setup would be a better balance over 1:3.

 

[clutchc]

+1^ on the dust problem. Positive vs negative pressure is kind of moot with computer cases. They have multiple entrance and exit points. Bottom line: keep as much air flow through the case as possible w/o creating a noisy tornado. 2 x in and 2 x out sounds fine. Remember, top and back for exhaust and front, bottom, and side for intake. (under most normal conditions)