I recently bought a Scythe Ultra Kaze 3K RPM case fan (133 CFM, 44 dba) from Newegg, which works fine when connected to the motherboard or directly to the power supply. However, when I hooked it up with the 3 to 4 pin adapter that it came with and connected that to my Cooler Master Storm Sniper BE fan controller, it makes an odd ticking/humming noise at low-med settings. The sound is immediately recognizable and gets pretty annoying after a few minutes. The sound goes over my 6 Nocuta 120mm 54 CFM fans, which are quiet but audible. When the fan controller is cranked up to max, the whoosh of the air is louder than the sound. Naturally I thought the fan was defective, so I RMA'ed it, and got a new fan. However, the same problem persists with this fan. Before I question Scythe USA, I want to know if this problem has occurred elsewhere. So was I unfortunate or am I doing something wrong? Thanks.
mines is connected to a Scythe Fan controller and does not make any sounds other than those of an F-16 at full throttle. Might want to check that fan controller again, or connect the fan to one of the fan headers on your board, go into bios and lower the fan speed to check for those sounds again.