Enable user defined software automatic fan control
Enables user defined software automatic fan control mode. In this mode software periodically checks GPU temperature and sets new fan speed according to the fan speed curve defined below. 

Hints:
- User defined software automatic fan control mode can be alternately enabled with <User define> button from the main application window.
- Software automatic fan speed curve is not affected by the profiles, it is a global setting for all GPUs installed in the system. 
- You may disable user interface tooltips via <User interface> tab in advanced properties.