I have to agree here with my findings.
It was not my ram that was at fault in the end (both sets work fine). It was only after getting a replacement board as that was next on the list that I got exactly the same problem with the 'b6' error code.
So the only component that had not been changed and tested was the cpu. So I tested it in a friends Asus Rampage V and got exactly the same error code, would not even boot.
It was also on this rig we knew my ram was fine too as it booted no problem.
Currently waiting for my replacement CPU to come now but won't be dumping any silly volts through the memory controller as I think it's that what died on me pushing for the high NB frequency.
You've been warned! lol
Never in my years of building PC's (and that's a lot of years!) have I had a CPU die on me before (I killed one by de-lidding it but that don't count!). It was a hard one to diagnose as well as after endless boot loops it would come back to life which made things more frustrating, but I could tell it was gradually getting worst and worst to the point where it would just not post and mainly giving a b6 or b0 error code. Glad I got to the bottom of the problem and it certainly tested my patience to the max!
Edited by combat fighter - 9/29/15 at 6:33am