Even if its not on the QVL list it will work 99% of the time, especially on high end boards that give you lots of tweaking settings. The QVL list is just the ones that ASUS has sat down, checked, and guarantee to work right out of the box.
DDR3 is DDR3 - what sort of random, unknown brand RAM are you buying to make it incompatible with Asus' flagship AM3 board?
Here is me with about 2 months of debugging time on this type of configuration, and i had Mushkin 8GB DDR3 1600MHz Black Frostbyte Dual Channel Kit incompatible, Corsair 8GB DDR3 1333MHz CL9 XMS3 Dual Channel kit rev. A incompatible, some 2 other OEM brands of 2x2gb kits incompatible.
Trust me when i say its a pain, 4gbx2 dominators are currently unavailable in my country and i am looking for international options.