![Amazon.com: DC 12V 1A Automatic PC CPU Fan Temperature Control Speed Controller Case Fan Speed Governor with Sensor for 2 3 4 Wire Fan : Electronics Amazon.com: DC 12V 1A Automatic PC CPU Fan Temperature Control Speed Controller Case Fan Speed Governor with Sensor for 2 3 4 Wire Fan : Electronics](https://m.media-amazon.com/images/I/610qZLW7PpL.jpg)
Amazon.com: DC 12V 1A Automatic PC CPU Fan Temperature Control Speed Controller Case Fan Speed Governor with Sensor for 2 3 4 Wire Fan : Electronics
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Amazon.com: DC 12v 3a 4pin PWM PC CPU Fan Temperature Control Thermostat Speed Controller : Electronics
![The constant jumping of RPM when using default CPU fan settings really bothered me, so I came up with this custom one. Is it good/safe (Ryzen 5 3400G with stock cooler) : The constant jumping of RPM when using default CPU fan settings really bothered me, so I came up with this custom one. Is it good/safe (Ryzen 5 3400G with stock cooler) :](https://i.redd.it/b0j6527ji3961.png)