I have the same question as well... except I'm confused by 3 vs 4 pin fans. Does one allow RPM control and the other not? If so, does the CPU have have to have 4 pins?
I already own a Scythe S-FLEX fan (an E and an F type).. can I use one of them to replace this fan? I think both are 3 pins.. but have a 3 - 4 pin converter packaged with them I think.
ive come to the conclusion that with out money being a factor this is the best fan to get after checking out spr as far as case fans im sticking with my yate loon medium speed fans those things are amazing http://www.newegg.com/Product/Product.aspx?Item=N82E16835185006