My dell dimension 5150 ran into some problems. When I turn it on, the power light stays an orange/amber color, instead of the normal green color. So I go about making sure everything is connected properly. Still same problem. One by one, I remove everything and try starting the computer, but still same problem. I have tried using a different power supply as well, but still same problem. Also, there is a green light that stays on on the motherboard when the computer is plugged in, but the power is off. When I pull the power plug from the back of the computer, the green light on the motherboard stays on for a few seconds and then disappears. For this, I assume a MB problem. Now, I called dell to talk to them about my problem and found that it would cost $50 just for them to listen about my problem since my warranty has expired, so I said I'll call them back if I can't figure it out elsewhere. If I do need a new motherboard, can someone please recommend one. On my motherboard, it says: Model: Connolly C RU(the R is backwards) US E187242 F2. I searched around and found that Connolly is Dell's personal motherboards, so can I find another motherboard that will work? I am not sure as to what processor I have, but I think it is a P4 prescott. Any help is much appreciated.