I currently have it running @3.8ghz on stock volts and it's stable on Win 7 but not games
These X6 CPU's from AMD are pretty solid when it comes to O/Cing the blighters, but how do you get the max from them? That is the question.
As you will no doubt understand, having got to the stage that you are already at, squeezing that extra speed out of the CPU is not always straight forward and can take ages to get the settings right in BIOS for the system to be stable.
Unfortunately, every PC is different and there are no hard and fast rules when it comes to tweaking, what works for me could well cause you no end of issues. Whenever I get a new CPU and I want to find out the limits of my system I use AMD Overdrive (http://game.amd.com/us-en/drivers_overdrive.aspx
) it does a reasonable job of getting everything out of the system and, once it has sorted everything out, you can transfer the voltages, timings, settings, etc., into BIOS safe in the knowledge that it is going to work as you expect it to.