Hello, I recently picked up a Dell Studio XPS 8000 from my friend and I was going to bios flash it. But here's the thing, the damn thing wont boot fully. It turns on with the cpu fan spinning. It just wont put any video signal out. I have tried 3 different GPU's and none of them have seem to do anything. Switched monitors and still nothing. There is a yellow light on it but it just stays yellow. Any help on how to get a video signal out?