Just finished setting it up last night and it was working great. This morning it keeps making this intermittent coil noise. If i had to describe it, its this electrical sounding noise. I have 6 fans in my system (2 SP120, 2 AF120 + 2 C70 fans) and I can hear this thing over all of them!
Bought it from NewEgg and just filed for an RMA but I want to know if this is a known issue and if anyone else here has experienced a similar problem? BTW my old HX850 doesn't have this issue.
Here's a cell phone video I made: