I started to mine today with my xfx rx580 8gb i saw that it can make around 30hash but when I started the program it was only running at 7 hash could someone help me ?
Since you are already pulling 30mh I think the card is in order, what mining software are you using? I suggest you should try out Nicehash, you don't need to flash bios if you are getting 30mh at stock, few tweaks will easily net you 32mh, also make sure you activate compute mode in AMD settings