I have Sapphire Pulse RX 570 4GB Hynix/Elpida.
Using HiveOS with 1150 Core, 2200 Mem, 950mv, (rxboost 30, 55, 75, 100).
Tried everything, 10 different BIOS mods, I even made one click timing patch with Polaris, tried windows (compute mode) hashrate is 26.6 and that is it!
That happens on 4 same model cards, same settings. I bought them used. The guy that sold them said that he was getting around 30 mhs (before this new version of claymore) with that same BIOS.
Please someone help me.
Thanks!