Thank you very much for your response. Sorry for this noob question. But I dont know which straps I will use for my MSI RX580 Gaming X (Samsung). Is it the 2000? Or both 1750 and 2000. I`ve seen the instruction that for 580, just copy the uber mix to both 1750 and 2000. However, I`ve also read some comments that they just copy it to 2000 only.  Can you help me which one do I need to do to get the best mining performance on my gpu? Thank you very much.