i use to have a Jetway board, I hated that thing (ECS is made by Jetway, or vice versa, I'm not sure. But one of them makes the other) my Jetway sucked. It supposedly supported DDR400, but the memory would only stay at 333. And when I upped it to 400, it's supposed speed, it wouldnt boot. I tried many a stick in there, all 400, and they all read at 333. Peice of crap. Thing ran like shyt too.