No setup needed it simply works the arctic f tc controls its speed by itself thanks to the temperature sensor all you need to do is to install the fan no further adjustments or setup is required the fan controller is set to keep the temperature between 32degc and 38degc when the temperature is below 32degc the fan spins slowly and silently if the temperature continues to rise the fan speed will increase to deliver maximum airflow and in turn cooling the pc more efficiently effi