The computer turns on and boots the post codes on the onboard LED things says CF and FF. FF is booting as normal and CF is checking the cmos. I put the jumper into the other position and turn the system on and it gives me the memory error(i think its supposed to at that point) then put the jumper back, still no video. The CF and FF keep going back and forth, and when it makes it to FF the CD rom drive makes the sound it makes when u restart the computer(the head moving), and goes back to CF. I've taken out the memory, put 1 stick in to every slot(both sticks tested) and the thing worked when I took it down when I left school.