(There are some exceptions when using pre-built systems from manufacturers such as Acer, Apple, Dell, HP, Lenovo, etc. If a fan stops at 0% it will be mentioned in the fan specifications on our website :įans used in computers are usually either 3-pin or 4-pin fans. Most fans will stop at a duty cycle of 0%, while some are designed to keep running at 0%. The duty cycle is a percentage, where 100% means running at full speed. ![]() The PWM signal resembles a square wave that regulates fan speed via its duty cycle. By controlling the fan via a PWM signal.The fan speed can either be regulated by adjusting the supply voltage (DC, lower voltage = lower speed).There are two main options for adjusting the fan speed via a computer’s motherboard: In the following guide we want to give a brief introduction to setting manual fan curves. ![]() ![]() Solution home Frequently Asked Questions General FAQs How do I optimise my fan settings?
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