OK, after some tuning I can confirm below setup is working fine for me with stable 30.4MH/s since 24H:
- clean and fresh Windows 10x64 Home installation + all updates
- latest AMD beta drivers
-
AB 4.4.0 beta 16 with applied
"voltage control" fix and
this one- no atikmdag-patcher applied
- 4x Sapphire Nitro+ RX580 8GB (11265-01-20G, HYNIX memory) with modded BIOS
- latest Claymore 9.8 with no overclocking/undervolting in BAT file
AB config: Screen shotmv: 970
Power limit: +0
GPU core: 1250
GPU mem: 2150
Fan: 50%
Power from wall: 787W
Thank you! your trick dit it for controlling the voltage with AB. I can only go down 100mv however if i first use trixx to lower it then i can go even further with AB, even to 0.800 mv. Im getting 62.2 ETH 1800 DCR (1 minute average) with only 350 W!! (2 RX580 Nitro+ 8GB)