matthew3 Posted January 28, 2020 Share Posted January 28, 2020 I installed an H60 corsair cpu cooler, and im just curious what would be a good voltage to set the fan on, i have it on 7.62 volts, i just dont want to let it sit on too high a voltage for something thats running continuously, but i want the fan to pull enough heat from the radiator. Thanks for input. Link to comment Share on other sites More sharing options...
DevBiker Posted January 28, 2020 Share Posted January 28, 2020 If it's the 4-pin fan connector, you should set it to have the full 12V. It won't hurt the fan at all. That's a PWM fan so it should always have the full 12V with the speed controlled by the PWM signal. Link to comment Share on other sites More sharing options...
matthew3 Posted January 28, 2020 Author Share Posted January 28, 2020 If it's the 4-pin fan connector, you should set it to have the full 12V. It won't hurt the fan at all. That's a PWM fan so it should always have the full 12V with the speed controlled by the PWM signal. So have it be controlled by temperature and not just a steady 12 V is what your saying? Link to comment Share on other sites More sharing options...
DevBiker Posted January 28, 2020 Share Posted January 28, 2020 It's going to be controlled by temperature, the question is how. There are two ways to do variable fan speed control - DC (by altering the voltage) or PWM (sending a Pulse Width Modulation signal to indicate the desired speed). The cooler's fans are intended to be controlled by PWM - and that's a constant 12V. Now, with this cooler, you'll control that in the BIOS by whatever temperature the BIOS makes available to you as a control source - usually CPU temperature. It's not a great control source for a liquid cooler but it can work. Depending on the type of fan, some PWM fans actually won't operate properly if they aren't supplied the constant 12V. Link to comment Share on other sites More sharing options...
matthew3 Posted January 29, 2020 Author Share Posted January 29, 2020 It's going to be controlled by temperature, the question is how. There are two ways to do variable fan speed control - DC (by altering the voltage) or PWM (sending a Pulse Width Modulation signal to indicate the desired speed). The cooler's fans are intended to be controlled by PWM - and that's a constant 12V. Now, with this cooler, you'll control that in the BIOS by whatever temperature the BIOS makes available to you as a control source - usually CPU temperature. It's not a great control source for a liquid cooler but it can work. Depending on the type of fan, some PWM fans actually won't operate properly if they aren't supplied the constant 12V. Im able to do PWM in my bios with something called smart fan control and set the fan to a certain percentage based on the temperature ( of the cpu im guessing ) , im still trying to play around with what are good boosting points for the fan based on what temperature. If i turn smart fan control off with the PWM mode im able to just set a general % for the fan use. Link to comment Share on other sites More sharing options...
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