Im using the stock cooler, seems to be working properly no dust, how can i make it stop thinking its overheating?
Your CPU is definitely not running at 206°C, it would probably have shut itself down at half of that. From what it sounds like, your BIOS is correct and whatever software you're using is wrong/glitching. Try checking with different software.
Also, make sure you're checking both at idle and under load. Check load temperature with something like Prime95