Soldato
OK but even if it is a low power bios you would still be able to increase clocks and take more. All the bios would do is preset everything for you.Is a miners card mate flashed with the 250W bios.
https://www.techpowerup.com/download/ati-atiflash/
download this.
Take a screenshot with one bios setting. Turn off the PC. Switch bios. and take a screenshot of the next one.
Post here your GPUZ and Atiflash screenshots