I'm almost happy - back to 21x190 with F6a although at higher qpi/vtt and Vcore voltages than F5g. 20x200 booted but wasn't stable.
Now, the only thing I need to figure out is why my 3x2Gb OCZ Gold memory will not run at 8x190. 6x multiplier and auto sets the voltage at 1.5 and timings at 8,8,8,22. It's supposed to be 8,8,8,24 1.65V at 1600MHz. I tried to set the voltages and timings manually but it doesn't want to know the 8x multiplier.
Anyone got any ideas to help me please?