Flosser wrote:i have tried the ribbon thing although inside my box looks different to to the one in the picture with a totally different layout and there is no ribbon that i can identify but i assume it must be a wire in mine.
What box are you talking about? Inside the console or CPU? There is no totally different layout with a d8b. They were all the same from start to finish of production in terms of ribbon cables and where they connect. Sounds like someone has been inside yours before and maybe the routing getting from point A to point B is different due to that, but point A and point B are still the same.
My money is on the power ribbon cables. They are the more "homemade" looking of the bunch, sort of tan in color with white connectors and an orange orientation stripe, usually 5 pins or so. Those ends can get a bit funky on these cables so you might start there.
Do you have a multi-meter? You can troubleshoot pin to pin continuity if you do and rule out these cables or maybe track down a bad connection some where.