Hey. I have a rig with six rx570 4gb cards. I'm trying to mine Ethereum. All cards show good hash rates. But card # 0 always shows a hash rate of 0-5. I can swap video cards. I can turn off one, two, three or more video cards. But always card # 0 gives a very small hash rate.
I turn off 5 video cards. There is only one video card that works. She is number 0 and has a hash rate of 0-4. Why? Help me please. Sorry for my English.