I have bought a motherboard on eBay but after finding the difficulties of a dell workstation motherboard (needing both a 20 pin and 24 pin) and getting a specific power supply for this just to find more abnormalities such as a 12 pin connector and a 5 pin molex, I have reached a dead end. When I plug the 20 pin and 24 pin in and when I apply power (at the mains) the fans spin on the two CPUs (X5450 Xeons) and on the graphics card, but no output whatsoever. Is this the motherboard powering on or do I have a broken motherboard?