Stop talk a shit about 30,5-31 mh/s with rx 580!!! Yes, its possible to get 31 mh/s but how long?? Rig will shut down after 1 hour, 3 hour..in the best case rig will shut down after 24 h.
I have 3 Sapphire RX 580 8GB Special Edition cards (blue faceplate) with Samsung + Hynix dual timing straps. Easily got them to 30-31 MH/s with 855-865 MH/s DCR dual mining after just flashing the cards using the PBE v 1.6 'one click timing patch' bundled performance straps Bios mod. Cards run very stable with zero memory errors using a 1150 MHz core clock, 2100-2200 MHz memory, -96 mV undervolt and -15% power limit. Awesome cards!
Where do you get this "one click timing patch"?
What are those other cards that are getting less than 30 Mh/s?