I have a feeling the secret is in the termination voltage in conjuction with GTL voltage.

These 45nm cpu seem to need other values than Conroe.

The "cheaper" Asus boards have a fixed value for this which is optimized for 65nm cpu's.

Bios 1002 with 45nm cpu support have both these settings in bios but they actually do bugger all.

I now flashed to bios 1004 and it looks like i gained some stability, i can run prime at a tad lower voltage now, Asus probably changed the default GTL voltage value.

I'm gonna play with these settings soon to see if these work now with this bios.

Maybe i'm talking out of my backside but changing GTL value on the DFI P35 helps stability a great deal.