I might be wrong? But don't A'thlon64' and 'Socket A' RAMS are the same DDR modules??? Or am I nuts? As far as I know, DDR2 is ONLY for new Intel mobos!!! Anyway, it's good to know that's I'm not the only one that made some damage due to my stupidity. Once, when I was a noob in PC's, I tried to mount my SDRAM the opposite direction and damaged my mobo Don't worry, it can happen to anybody!!!