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![motor controller - Is this the correct way to control the speed of a 4-wire CPU fan? - Electrical Engineering Stack Exchange motor controller - Is this the correct way to control the speed of a 4-wire CPU fan? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/T398p.png)
motor controller - Is this the correct way to control the speed of a 4-wire CPU fan? - Electrical Engineering Stack Exchange
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![Asus PWM CPU fan control in Extreme Quiet mode downvolting the fan tension to 6 volt. This a stock intel fan cooler at 300rpm, when supposed range is 1000-2500 rpm. This is Asus PWM CPU fan control in Extreme Quiet mode downvolting the fan tension to 6 volt. This a stock intel fan cooler at 300rpm, when supposed range is 1000-2500 rpm. This is](https://i.redd.it/t6b747agoiub1.jpg)