Well I have unplugged the power connector then plugged it back in, I don't know how else I can check it. What I can't understand is how can the risers be malfunctioning all of a sudden after days of mining? The miner doesn't move, the GPU's are secure. How can they work for days, then fail, then after a few restarts begin working again. There is no logic there unless I am missing something.
Hi rawbot,
I have the same issue with my Sapphire RX 470 Nitro+ cards. Sometimes they run several days without issues and then one card starts failing and rebooting doesn't help. The only solution for me is then, to power off the miner, remove the power card and wait 30 minutes. If I power on the miner again, everything is fine. It is not a temperature issue, I have checked everything.
My guess is, that something gets weird in the GPU and only a longer power off phase resets this weird state. ^^