Hello bad flash GTX 680 Possible flash MSDOS ? Possible Eraze bios nvflash ? Pls Command Thx Resolu Solution Code: Serial Flash chip cannot be erased physically, it needs erase command to be sent to it. Try with PCI VGA in another slot, and check what[B] nvflash -c[/B] option show you. In most of cases from wrong reflash - card physically still detected, just no display output. If nvflash -c will give you GK104 something something - than you will need just to reflash it as usual under DOS NVFLASH.