This problem just popped up out of knowwhere. Only way to adjust fan speed is to click on maximum button. I click on auto or custom and it goes right back to zero. I guess it might make sense for the fans to not spin under auto option if the cpu is running cool, but not where I had it set for custom. Restarting Nitro sense helps, but only for a few minutes.
Let know if anyone has had this problem. Saw another thread where poster reported Predator sense exhibiting similiar behavior, but no resolution occurred. In the meantime will reinstall NS and cross fingers.