I have a rig of 6 Dell RX480 reference cards, and when I flash the BIOS in the OP I get the Code 43. I've tried old Catalyst 16 drivers as well as 17.7.1, both with BIOS signature patched by atikmdag-patcher, but the card I flash refuses to work (detected in device manager but Code 43) until I flash back to stock. Another potentially related issue - when I tried using PolarisBiosEditor 1.4 to create a modded BIOS myself, the memory speed labels seem like random numbers and not normal speed numbers that I see in tutorials. Any help would be greatly appreciated and ETH donations considered.
Screenshot of PolarisBiosEditor:
https://www.dropbox.com/s/ein29jlupex4hk3/BIOS%20Editor%20SS.png?dl=0Stock BIOS:
https://www.dropbox.com/s/6qnkb6dwzufv7gd/stock0.rom?dl=0