Thank you

You won't find anything on the circuitry, not even from Dell. I was chatting with a tech Friend the other day on the same issue for a Dell machine. He had traced the chip down on the board and asked if I had one or could find one. After looking through all my resources and talking to a Dell tech that I use, found nothing. The Dell tech that I use couldn't find anything on the specific chip with his Dell resources and told me that motherboard replacement was the only option. Which I already knew. I've tried replacing the chip before with chips from dead parts boards that I have, and have only had about a 15% success rate. The chip replacement is a real nightmare, involves soldiering on the board under the chip. So, I'm sorry, but there's no info on this. I may be able to get you break down diagrams and instructions for your machine if you want to replace the board yourself. Let me know.