Here are the original and modded BIOS roms based on the instructions. Both are for my set of GIGABYTE Aorus Radeon RX580 XTR 8G. However, no matter what I have tried, Windows 7 hangs as soon as the "Your VBIOS has been imported successfully" message and I have to hard reboot. Cards were definitely updated because as soon as I boot into EthOS, I get dready super high speed fans....and 17MH/S. Begging for help because these cards are just collecting dust instead of mining.
Thank you so much!
https://drive.google.com/drive/folders/0B1WcnHjlDkk4SXBuTXpDcFIwdE0?usp=sharing