Deus Vu1t :
Are you sure the temps are hitting 80c? These cards are designed to not start the fans until it reaches 62c and above, so if the temps are as high as 80c, there is definetley something not working. Check the BIOS and see if everything is running stable.
Yes, I am sure that the fans do not spin even when the temp reaches above 80, the time the fans spin is when I turn the PC , they start spinning then never turn on after. And I am not sure what to look for in the BIOS