Hi, my MSI RX580 8GB Samsung mem can only get 28mh/s. I believe it comes with original bios. I have another same exactly card running stable for 31 mh/s at:
Core clock 1150
mem clock 2100
VDD/VDDCI/MVDD 850/850/1250
The problem card can only run at:
Core clock 1000
mem clock 2050
VDD/VDDCI/MVDD 900/0/0
That dont sound good. Have you checked thermal paste because you need a higher core clock to get higher speeds. 580’s need about 1100-1200 from what i have seen.