Athlon 64 FX55 San Diego Core Prometia Mach II Overclocking

After much tweaking we were able to get 3.6GHz with a good amount of stability, but not enough to run benchmarks. 3.7GHz and 3.8GHz frequencies were just out of our reach for getting into Windows. As you can see above just under 1.7V is what we used at 3.6GHz. We backed down to 3.4GHz, or what theoretically would be an FX63 for benchmarking, and lowered voltages to 1.65V.