I have a Emachine-EL1360G-UW12P that I took apart the other day to clean out and make it shiny new and I also cleaned other parts inside it and had to unplug everything on it to clean it up. But now, I have a 4 pin ATX +12 volt power cable that I don't know where it goes. Here is how the motherboard looks and I highlighted the places that have nothing plugged in.