I thoroughly tested several 120mm fans for best temps vs noise/cfm and really like the following 3 fans (to be used for different purposes in your rig):
1. Scythe Ultra Kaze 2000:
Best used as a CPU Cooler fan…the 3000 is overkill in my opinion and the added rpms really don’t bring down temps much more than the 2000. This is a x38mm fan and even at 1750 is very quite in my case. Love this fan as it brought my cpu temps down significantly over the x25mm fan I had on there initially.
2. Scythe S-Flex F:
Very good for intake or exhaust. Good cfm and pretty quiet even at full rpm. Or you can get the E series that is a little less cfm/dbs but might as well ge the F and undervolt so you have the headroom when needed.
3. Scythe Slipstream 1600 rpm version:
Very good as an exhaust fan, almost as good for intake (fan blades don’t push as much air though if constricted behind a filter, the S-Flex does better.
All of the above fans have no discernable whining at any speeds (at least the ones I have don’t).
Please see the research I did about a week ago for specifics and let me know if you have any questions (I am happy to help out!):
...and no, I do not work for Scythe, just like their fans for now until something better comes out!Edited by Qbert - 5/22/08 at 9:33am