I think that sounds like a memory problem going off by head (can't remember but worth a shot!)
Take out all your memory sticks and put one stick in slot one, attempt to boot up and see what happens, if you get the same result, pick another one and slot it in slot 1, try boot up again, if nothing.. I am out of ideas LOL!
Do you have another motherboard you can try? Do you have another computer built up you can try?
EDIT: Whos your daddy
LOL lucky shot in the dark, also.. try removing all your external periphirals you don't need..!