@Claymore, I don't know if anyone already had this problem. I have a 8 x RX570 8GB rig mining solo ETH, randomly one card (any card) drops to 22Mhs for minutes and then it starts again going to full speed. I have been seeing this for long time now, any advice?
Thanks
Does the fluctuation of the hash rate on the one card reflect in the pool?
I read it somewhere that when a correct hash is calculated by the VGA and sent to the pool, it may affect the hash rate of the card for just a moment.
Also, try to remove any OC that you have on that card and see if it solves the issue.
Yes, it does reflect the card pool. With Phoenix and same OC settings I don't have any of this issue. Card are running really cold, so it is also out a question that cards are slowing down because of heat. It is not just a moment, I'm talking about minutes slowing down.