Conumdrum :
God gave you a brain and you have an internet connection. Nuff said.
DAMMMMMM, Conumdrum, I've been away from this forum for a while and your getting even worse then you used to be, and I didn't think that was possible
To OP: if you have an i5 750 you can MIGHT get away with a cheaper cooler and reach 4.0 GHz, if you have an i7 860/870 the cheaper coolers just won't cut it.