I overclocked my CPU to 4.5Ghz and as far as I can see everything it stable. When I run prime95 though, my clockspeed goes down to 3.7 or 3.8Ghz despite the temperatures never rising above 55 C. When I play games, the clockspeed stays at 4.5Ghz as does it in basically every other application (Cinebench etc). Anyone know why prime95 is only achieving 3.8Ghz?