I have had my AMD Phenom II X4 965 for a little over a month now. It worked fine up until a few days ago when it would crash and i would get a blue screen. sometimes it would start back up and other times it would immediately blue screen again. i checked the temps and they were always around 40 degrees i put my old cpu in and everything started up fine. Now the new cpu goes straight to blue screen every time. what could be the cause of this?