I bought this power supply some time ago and recently when I added another HD and a DVD burner I was having issues. I think it could be the power connectors themselves but I am not sure. I'm also running a soyo dragon with a 1700 xp, another 7200 rpm HD, a dvd slot load drive, and a cdburner. I'm not sure what model this is but if you own it you could tell because its pimp looking...