I’ve been running phoenix miner and everything was totally ok with HS rate about 140 MHs, then I’ve sold those 2 GTX and boot the rig only with AMD cards and problem has occur.
Since then, I am not able to start Phoenix miner at all (tried different version, with or without OC on cards, flashed original bios etc). I have tried to use different miner (Gminer, lol miner ethminer) and sometimes RX 580 started mining, but not Vega.