I am curently using Nexus, and I'm happy w/ the fact that it's totally silence. But I'm looking for a 38 mm thick, 120 mm fan as well due to CPU, memory upgrade. So far, the only 1 posted in this thread is the above. (I simply won't look at silenx w/ their phoney spec.)I was once involved with an exhaustive study on fans that are over 80CFM and low noise.
The winner ... Nidec TA450DC series.
Of course you can't typically buy these at any store, but on computer spare parts or on eBay, these are easy to obtain. Dell, H-P and other OEMs use them.
http://www.newegg.com/Product/Product.aspx?Item=N82E16835185072Is 37 DB Considered Loud for Sythe Kaze Jyuni 110 CFM @1900 RPM
great tip. thank you. I do a double check on the rear fan that I currently have, the spec. should be in the range of:120x38 Sycthe Ultra Kaza: http://www.newegg.com/Product/Product.aspx?Item=N82E16835185054
This thing is loud (so loud that I sold mine), but it moves air by the bucket.
It should also be noted that I had it on a fan controller and I didn't see any increase in cooling going from 2000 rpm to 3000rpm.