Hi

First off thanks for everyone who posted here - my first overclock and I got to 21x190 on bios F5g

I flashed BIOS to F6a tonight and whilst it has cured the double post issue I can no longer get to 21x190. 21x187 seems to be the best I can get, has anyone else seen a similar effect going to F6a?
I upped Vcore to 1.425 and QPi/Vtt to 1.385 (1.40 and 1.335 on F5g) but that hasn't helped.