So has anyone here used the Cooler Master Jetflo 120's? I had just got one of them today and installed it as the rear exhaust on my Cooler Master HAF X. The fan moves tons of air but the only question I have is, has anyone else installed one of these as an exhaust on their case? Mine has the type of hum that sounds like its from the motor that is transferring to the case and amplifying the sound of the fan. I'm not sure if it is normal for this fan or if it is defective? Also it doesn't matter what speed the fan is at, the vibration sound is present at every speed.