So today I attempted to overclock my cpu following a guide and I started off by doing small changes as recommended, but those small changes was enough to give me a blue screen when windows tried to boot up. I then went back into bios to restore everything back to defaults and set my boot harddrive to the one windows is installed and saved it, I was still getting the blue screen. Did i miss something? Or did the small changes simply blew up my cpu? Help would be much appreciated!