If it’s not making as much noise and working properly, then you’ve found the optimal fan speed. To help you adjust the speed, you’ll also see an RPM tracker indicating when the fan’s working slower or quicker. You should now be able to control the fan’s speed by pressing the arrow icons on the app’s homepage. Click “OK” and return to the Speedfan homepage.Choose your fan type based on its connector (DC or PMW).Go through the drop-down menu until you find your CPU type.When you want to make changes manually, go with “Configure.” Then, tap “Advanced.”.If you want to allow Speedfan to control your settings, choose “Automatic fan speed.”.The app allows users to have even more control over CPU settings. How to Control Fan Speed With SpeedfanĪnother helpful way to modify your fan speed is by using Speedfan. If you want your PC to run smoothly, the CPU shouldn’t exceed 70 degrees. Picking the temperature threshold point.

The most common options are “Full speed,” “Performance,” and “Silent.”

Windows 10 fan control software