This can also increase the lifespan of the fan. You can also get controllers that automatically sense and respond to the temperature of components.

Efficiency: By the same token, a good fan controller helps make your rig more energy efficient by letting you control how much current is being supplied to your fans.As a result, most of the time your fans are running more than they need to be. Flexibility: Normally, computer fans are not particularly calibrated to respond to the computer’s internal state.Hope it helps! if not just comment and I'll keep trying for other fixes. Now if you click on the up or down arrow button, your PC fan speed will change accordingly.ĭownload your motherboard specific software from this websiteĪpparently it uses a AMD Promontory B450 chipset. Here you should be able to see PWM 1 mode, PWM 2 mode, and PWM 3 mode.Ĭlick on any one of them and set it to Software controlled. Now select your motherboard chip from the drop-down menu. Just click on the Configuration button and then on the Advance tab. Simply downloading SpeedFan and hitting the UP arrow will not increase your PC fan speed. It should resolve the Speed fan not detecting fan problems. Change it from S3 to S1 and save the changes as a custom default. In BIOS under the Power tab, you will see the setting for ACPI suspend type. After that, you need to go into BIOS settings to bypass the CPU fans. Once you update, then check if SpeedFan supports your motherboard chip. In this situation make sure that you have installed the latest version of Speedfan and BIOS. Sometimes SpeedFan doesn’t detect fans, be it CPU or case fans.

Cpu fan controller