i am one more "lucky" with and faulty 6850, i´ve been reading the other post with the possibles solutions, i did all those things and didnt work.
I tested:
updating bios moterboard / graphic card
3 different Drivers versions
no voltage problem
no voltage problem (tested with a cooler master 750 W, ocz 600 W, corsair 650 W)
downgrade the memory clock to 900
nothing worked
Is there any "official" solution from gigabyte to this problem?? or not yet?, should i RMA my card?