The machine had more than one video connection and I move the video cord to the display to the other video output port and there it was!
so i bought a new gpu radeon 6870 vapor x all seems fine it boots up till it hangs at the windows logo i can hear my pc is booting normally through my speakers. also i can start through safe mode and get in my bios screen so whats up with this card. it boots fine with my old ati 3850 hd card. sorry for my crappy english I'm dutch