So this's kinda odd but whenever my graphics card reaches 77c the core clock speed significantly throttles and jumps around. My psu is a Corsair VS 650 motherboard is an msi b450m gaming plus my graphics card is a powercolor red dragon rx580 8gb It has 8 Pin power (6 + 2) None of the components overheat on my computer. I've been scratching my head at this problem for a while and couldn't find a solution, I'm hoping somebody could help me with this. My computer is around a year old now.