so, i have an old hd 6790 which overheats to 100+, it has new thermal paste, the cooler is placed, the fan works, and i have an alright airflow in my case ( i dont use the glass), i dont know what else could be, i though it could be the psu or a bad driver, as it doesnt seem to be anything with the card itself, i already researched about this card and the temps should be 70° degrees at 100%, my psu is an atx 800w, not the best one, but its what i can afford rn, any thoughts on this?