I still recommend setting Speedstep, C1E and Spread Spectrum to "Enabled".
Anyway, for LLC, I recommend trying "Ultra High". C3 and C6 should be Disabled if you're getting BSODs while idling if you're using an Offset.
I kind of hate changing settings on motherboards as I am not very good at it and I'm always waiting for the next blue screen or for something to break. I prefer building them, my friend has a gigabyte board that will do 1.270v at 4.5ghz. It would seem I have a bit of a lemon.