I have a phenom 9500. I have it overclocked, believe it or not to 4 ghz. I have the multiplier set to x20 and its running stable. The only thing im wondering about is when i run cpu z it still reports that the cpu is running at the stock 2.2 ghz although windows vista shows 4 ghz as does my bios. So is my computer actually running this fast or is it a lier? Any help is appreciated.