Originally Posted by PapaSmurf
Those Hish Speed Yate's are excellent. Lot's of CFM and Static Pressure. Ideal for rads and heatsinks, but overkill for case fans unless one uses a fan controller. For case fans 40-50cfm is ideal which makes the Low Speed Yates ideal.
No it won't. The fan will put out the same cfm regardless. The obstruction will be the same for any fan. But that is where the static pressure comes in. Fans like the CM BladeMaster and Hi or Medium Speed Yate Loons have a higher static pressure than the majority of other fans so they can force the air through the rads or heatsinks. It's teh Static Pressure that comes into play here, not cfm. That's why some fans with a high CFM's and low static pressure fall flat on their face on a rad or heatsink. Without the pressure they can't push the air through the fins. They work quite well as a case fan since there aren't any obstructions though.
That's what I was saying, Martinm210 tests were ran on a rad. So some of the fans on there will produce more CFM's as a case fan than what that thread is showing. Lets say fan A and fan B were in his tests. Fan A has high static pressure but Fan B doesn't. If his test showed them producing the same CFM's on the rad, then Fan B would more than likely produce more CFM's as a case fan than fan A.
If I put numbers in there and asked how much more CFM's fan B would make, it would sound just like a story problem from middle school, lol.Edited by GoodInk - 3/2/11 at 6:58pm