I have problem with miner. I have two rigs with 6xRX570 8gb nitro +, win 10, blokchain driver same bios on every card. Basicaly same two rigs. One is mining stable and around 31.5 mhs per card with -cvddc 900 -mclock 2200 -cclock 1150 . When I apply the voltage on second rig it goes down to 8 mhs after few minutes. If I dont put that it will mine ok but power goes to 1200w. If I mine with stock clock it goes to 25 mhs. Every other driver mines just 10 mhs. I use to mine with claymore and everything was fine and stable for 3 years. Is there a way to reduce voltage or something like that?