Originally Posted by Grandlo
I can't imagine pull being better then push. Pull is for venting trapped heat, push is for spot cooling. Remember the whole idea is to MAXIMIZE the number of air molecules that collide with the fins per unit time. it seems to me push would be better because in pull mode, there would be a pressure drop between bottom of the fan and the back of the rad where the air is coming in. this would cause less suction to the surrounding air and hence less air flow in general. this is different when we just want to vent heat from a computer case, in this case, we're not trying to maximize the number of air molecule collisions we're just trying to pump heat out of the case.
when it comes to wc'ing, it depends on your rad's fpi, how thick your fans are, and how fast they are. depending on each, there is specific scenario that would benefit the user the most.
the only exception to that is push+pull w/ shrouds.
martin's testing has shown that very well. Edited by nafljhy - 2/19/09 at 5:42pm