Hi, i've tried to flash bios on my VTX3D Radeon 6850. I got my bios from here: http://www.techpowerup.com/vgabios/index.php?page=1&architecture=ATI&manufacturer=VTX3D&model=HD+6850&interface=&memSize=0. I backed up my bios from win atiflash and then flashed one of these. Bios was designed for my model, same clocks, amount of ram etc. Win atiflash said that flashing is done, everything is ok and i need to reboot pc to take effect. When i rebooted PC, MB speaker pinged once like normal, and that was all what happened. Nothing on the screen and pc didn't even started to boot system, monitor don't see signal. Now i can do nothing. I tried to plug monitor into my integrated GPU but nothing's changed. I cant even see bios POST. Nothing at all. I think that adding PCI card won't change anything. My card is kinda new and it has warranty, but i don't know what service might say if i return it to them. Is there anything else i can try?