How to BIOS AMD GPU for ETHerium mining (RX470,RX480,RX570 and RX580)
GPU-Z : https://www.techpowerup.com/gpuz/
PolarisBiosEditor : https://github.com/jaschaknack/PolarisBiosEditor
AMT/ATI FLASH: https://www.techpowerup.com/download/ati-atiflash/
Run GPU-Z and make a backup of your Original Bios, make sure you name the original bios with details Example: RX570SapphireNitro+ 4GB Hynix Memory
Use Polaris Bios Editor 1.6.7 and open the Original Bios you saved
Click the "One Click Timing patch" and hit OK on the following prompts
Save the Modded bios(either make a new folder with all your modded bios or just add _modded.
Run ATIWinflash and load the MODDED BIOS and click Program
while the BIOS is being flashed you may get a "NOT RESPONDING" prompt DO NOT CLOSE THE APPLICATION, wait patiently and it should complete.
If all goes well, you will be asked to reboot the system and you can test if you have a better hashrate than before.
BIOS MOD video for RX470,RX480,RX570,RX580