Hi there everyone,
After installing and removing the Beta drivers several times I have finally found a way to stop the BSOD in Win7 64bit.
I came across a thread on google where someone said they upped their memory voltage in Bios and that fixed the problem, I was a bit dubious about this but Hey it works!! I also have ULPS set to off via regedit.
I have Corsair Vengance 1600Mhz DDR3 in an M4A77TD Pro Moboard with a 1045T Oc'd to 3.6Ghz, Xfired 7770s Oc'd 1100Mhz / 1300Mhz, 800w PSU. The DDR3 has a maximum voltage of 1.5v as stated on the packing, which is what I set the Bios to use.
So far 4 hours gaming and no BSOD. The proof is in the pudding!
Perhaps the new beta driver is drawing more power from the ram I dont know??