Ok so i have an Intel Core I7-7700k so i was playing GTA5 and notices it seems a bit laggy so i went on my task manager to see if there was anything open that i can close to speed it up.. then i noticed i was only running at 0.80ghz when my CPU normally sits at 4.20ghz so i tried reseting my bios and it didnt work iv tried turboing my CPU that too didnt work i tried to see if there was any updates with my drivers in my bios or anything.. everything was up to date iv seen if my fan headers where installed correctly iv tried almost everything but cant seem to find the reason why it goes from 4.20ghz to 0.80ghz within 1min of starting my pc and no its not the game or anything iv tested that too. Someone PLEASE HELP