intake or outtake

[invisigoth]

I'm mounting some fans in my case,now i have the following question : 1 fan lower front for intake , 2 fans upper back for outtake , 2 fans on top for outtake.So far so good , but i also want to put 2 fans right in front of my CPU.Do they have to blow air in the case or suck air out?

 

[Bubba]

Blow in on the CPU. You have 4 blowing out but only one blowing in. If you don't have enough intake, your fans blowing out probably won't work as well as they could.
That is how I have mine set up.
With all those fans your case should be nice and cool.

 

[yoda271828]

You ideally want to balance the intake CFM and the exhaust CFM.

 

[Guest]

What do you hope to gain from 7 fans, compared to 5 fans? I really don't think you will notice much difference in performance or reliability over 2 or 3 fans, unless these fans are the small 50-60mm fans. Most case fans are 80, 90, or 120mm units. The need for 5-7 fans would only arrise if the heat inside the case is extreme, which I doubt unless you have an extreme heat source, or if the case is a huge server style case, and I mean huge. Server's that run 24/7, 365 days a year with 2 to 4 CPU's only have 3-4 fans in them, and most servers do not even have fans on the heatsinks due to case design.

 

[Guest]

And if the air flow is unbalanced at all, there should be slightly more intake air which helps to keep dust out.

 

[toonces]

i think it depends on the direction of airflow your heatsink fan puts out. i have a chrome orb with a hood over it. the fan in back sucks air out because thats the direction the orbs fan goes.

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