I currently have two of these 120mm Cooler Master fans in my case:
http://www.newegg.com/Product/Produc...-022-_-Product
That's a 2-pack for $10, a real deal. These fans are decent, but they are kind of loud. The specification says 20 db, but I they are more like 28-30 db.
So I am going to replace them with Thermalright X-Silent series. I can either get the 120mm or 140mm variety, I prefer the 140mm, because it moves more air.
Here is the info on the 120mm, my favorite is the 1000rpm one:
http://www.thermalright.com/new_a_pa...r_fdb_fan.html
Thermalright claims the 1000rpm fan is 15 db, although SPCR.com gave a reading of 20 db.
Here is the info on the 140mm:
http://www.thermalright.com/new_a_pa...ilent-140.html
Note that the noise rating is 20 db, same as the Cooler Master fans that I am replacing. If these are indeed equally loud as my old fans, I would not want to buy them. I don't know how honest Thermalright are with their specs.
Is there anyone with knowledge of these fans, how loud are they?