The power supply cord works fine. I took it to a computer store and they told me it was the power supply to the motherboard or something like that. The guys did not open my computer or really take a look at it, really not very helpful. He did plug up 3 different cords and could not get them to power my computer either. That's when he told me it was the power supply to the motherboard. The guy told me I was better off buying a brand new computer. If there was another way to charge my battery my computer would work fine. It will run off of a charged battery! It just want charge my battery or even read that they power supply cord is plugged in. Any suggestions!