There's only 1 version of A7A266, that has sound, uses MAGiK, and has 2 DDR and 3 SDR slots. I'd stay away from it, it performs poorly compared to AMD 760 and SiS 735. If u must have SDR and DDR slots, ECS K7S5A (SiS 735) is the board for u with 2 DDR and 2 SDR slots