So seeing the arctic P12 fans posted here everyday i decided to jump on them and buy a few. I had seen reviews that say the engine made a small noise at certain rpm's but didn't think much of it. Fast forward getting them the whirring noise they make is mega obnoxious, way worse than the fan being louder.
You can't run them at PWM at all because when they go up/down they'll most likely pass an rpm they make that noise at. You have to run it at a static rpm and even when i thought i found one that sounded fine a day later it starts making the whirring sound and i have to change that rpm. All 4 fans have the same issue. Is anyone else not getting this? $10ea is cheap but they're driving me nuts.
You get what you pay for, i said they were sub par in one of the threads and got downvoted to oblivion. Sometimes people just cant accept what they dont want to.