GTX 680M and M6600 issue. Black screen after installation

and games?(

 

Then maybe there is a problem with some driver inf files you're using. I didn't really check those recently, but there is some combination of vendor ID, system ID and graphics card ID that you need to add to the inf file for your laptop. Since this card is not generally available in the Dell Precision series, the right combination probably doesn't exist in the inf files. On the other hands, I don't understand how these drivers then used to work, unless the replacement motherboard has some other ID.

So, unless you can verify the card is still OK by trying it out in some other laptop, you could try to study the inf file modding and add the relevant line

 

So i came to a conclusion that my card is broken, because i've tried nearly 15 drivers with different revisions (from 29x to 32x.xx) and with some i have only the blackscreen, with others i have low resolution with no chance of changing and with the rest i just get a restarts after BSOD. So thank yoy guys for a help i will switch back to my 4000m.