i have the exact set up as well and i am having this issue as well. now i set my RAM up on dddr1 and 2, is this right? Also i did a pre setup before i installed w/0 the hdd and dvd player set up and it booted up fine. then when i connected both hdd and dvd i got this error message. so i unpluged both and it booted up fine, i then connected only dvd player and again it booted up fine, so could it be my hdd? Please help first time builder!