Quote:
Originally posted by Divided
real simple question here
clearly running two of the same fan types (both lets say 40 cfm) can have problems.
so why is this getting more complicated then simply having a stronger fan being used as the "Pull" fan in a push/pull setup.
40CFM ||Rad|| 20CFM
this way you're sort of running only a "Pull" fan but you are just giving it a little 'boost'
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(I can't believe that I have to explain this!)
That setup will limit you because you're trying to suck more cfm than the other side is providing. You'd be better off with the 40cfm fan by itself.
Ya'll need to understand a few things about these push-pull setups:
1-the resulting cfm will be just about the same (very slightly better).
2-the only reason for doing this is to compensate for the air flow resistance through the rad.
3-the alternative to this is a single bigger/faster fan, at the cost of noise.
That's why I mention x-flow fans, because regardless of the noise, they will be encased, making the noise a non-issue.
So if you want a quiet 100+ cfm, you can easily achieve that with an x-flow.