Thanks for the advice, I will try the memory test when I get some time.
As for the power pins I can't seem to line them up as the title on the wires are different than those listed in the manual. There is one pin that is blocked off, I take it that this is the "key" pin. But if so then nothing will plug into this.
So the memtest failed one of the Ram cards. I suppose this means it is dead with no hopes. Oh well.
I still can't figure out why it can't find my graphics card or the USB wiring.