Hi, I recently purchased 7x Corsair ML120 fans and they make this obnoxious clicking sound as soon as they run at less than 1300RPM. They are connected via a Corsair Commander Pro fan hub but I have tested with 3 other hubs and even ran them connected directly to each of the fan headers on my motherboard. They sound horrible to me.
I have tested dozens of different brands in my computer, including EK-Furious Vardar EVO 120 BB and Be Quiet! Silent Wings 2 where only the latter actually kept what they promised and were silent on low RPM. Unfortunately Be Quiet's fans don't move enough air through my rads so I'm forced to go with the Corsair ones.
I've uploaded an audio file on Soundcloud here:
-- that humming noise does not exist in my computer, it is my cellphone's mic that makes it sound like that.
Is it normal for them to click like that at lower RPMs? I've read that if they get insufficient voltage they make clicking noises, but according to iCUE (https://i.imgur.com/M3tccoC.png) the Commander Pro gets 12v which is exactly what the fans need to work properly.