Hello i have 2 cards powercolor dragon rx 580 4gb and the main card have 64°C with fan 75% and the secound have 56°C with fan 60% that is normal or i do something wrong?
As long as the hashrate is about the same, it's normal for the same type of cards to run at different temps with the same settings. When hashing together the cards don't do the same amount of work and the one submitting more shares usually run a bit hotter. Each card also has different ASIC quality.