Noise sample, Arctic BioniX P120 ARGB, Mounted on a case front.
The fan operates PWM 0% to 100% and 100% to 0%, gradually changing the rotational speed.
0:02 Part 1: Noise sample for PWM operation.
1:16 Part 2: Explanation and list of the RPM points that make resonant noise.
Microphone: MATASTUDIO C10
Camera: Samsung Galaxy Note 9
PWM control: lich426's FanCtrl
![](https://s2.save4k.ru/pic/1xiHXqxhPkA/maxresdefault.jpg)