Apologies if I wasn't clear enough. In Precision X1, you will see arrows on the bottom half of the main screen. Click one of them until you get a screen that will show you graphics for each of your fans. On the left side, ensure the "enable automatic control" box is filled in, then you can move the graphs where needed. You can set a minimum speed by sliding the left dots up to your minimum desired speed. Once you have done this, click Apply and it should apply that specific curve the fans. The fan speed will change based on temperature.