Most software has a difficult time properly reading amd's fx cpu's. Try using amd overdrive and it will report the thermal headroom you have until the cpu reaches throttle temps. If it says 15c for instance, then there's 15c until thermal throttle. If it's reading 3c then there's only 3c left and so on. If it's at throttle it usually turns red and indicates with a 0 or negative number indicating how many degrees C it's running over throttle.