As Equihash is a core dependant algorithm, Bios mods have little effect on the hash rate. If I mine Equihash with RX 570/580's, which is almost never since dual mining ETH is more profitable, I use the same Bios, increasing the core and reducing the memory overclock.
With Powercolor Red Dragon RX 570's with Hynix/Elpidia dual timings Bios on Windows 10 with the AMD blockchain drivers for ZEC I get ~315 H/s with a 1325 MHz core clock, 1950 MHz memory clock, -96 mV undervolt and -15% power limit in Afterburner. On RX 580's I get 325 - 330 H/s with the same settings.
https://bitcointalksearch.org/topic/m.23161266
With Powercolor Red Dragon RX 570's with Hynix/Elpidia dual timings Bios on Windows 10 with the AMD blockchain drivers for ZEC I get ~315 H/s with a 1325 MHz core clock, 1950 MHz memory clock, -96 mV undervolt and -15% power limit in Afterburner. On RX 580's I get 325 - 330 H/s with the same settings.
https://bitcointalksearch.org/topic/m.23161266
thnx was afraid to use high core clock, but thats all it took, now im get 300-315 on all cards
