i have had lots of memory compatibility problems with all the conroe boards i have owned. I spent a thousand bucks and bought that ocz memory that has the huge metal heatsink with the watercooling plugs like the dominator memory.... eh 680i hates it. Patriot memory,, hates it,,, my crucial memory,,, hates it. I use my slower ocz platinum memory and it loves it... and i hate it.
Did you crank the voltage up on the memory? default is 1.9. a lot of the higher end memory on these boards need 2.3