Let's start out by saying I'm a noob at this. I recently built a new system. Something to play around. I have an Asrock 890fx Deluxe 3 MB ( 1.40 bios) and a Phenom II x2 555. I have no problems unlocking it to a b55 x4. I ran prime95 for 4 hours with no problems. The problem I have is that Internet explorer keeps crashing when I'm running with the cores unlocked. any ideas would be appreciated.