Hi am new at this i never knew that you could change the bios signature for a radeon card . So just today i try to do this . search for my original bios.rom save it into flash drive also my computer . Then i search here in techpowerup for 6870 bios signature an i load it into method 1 as the computer restarted the graphic card doesn't seem to come up , it is just searching for signal . So now am getting worried . So what i did now is disconnected the HDMI cable from my 6850 sapphire an connected the HDMI cable to my motherboard internal graphic card. My computer seem to boot up normally everything seem find . But now how do i restore my sapphire 6850 card to the original bios that i had before an i saved ?