I delved into these dark arts few months ago, uber - exactly same thing as you - trying to get PC to handle PCSX2 and Dolphin. However, mine was on an intel chip and not an AMD, so don;t know much about OCing AMDS. I'm imagining it's the same process, though. In the end, best results were not from software approaches to OC, but from slowly raising values in the bios (raise > benchmark > raise upon success) your best bet is overclockers.net/org or whatever it is. Good search, cos large differences between approaches for different chips. Key things to consider: FSB; Multiplier; Voltage. Oh.. and temperature