Using RX 580's and a custom bios. Not getting any crashes using Claymore miner, and not getting any hardware errors in HWINFO
However every now and then one of my cards (can be a different card each time) drops its hash rate to a fairly low figure. It bounces up again, but of course this is effecting my average and reported hash rate.
my temps are all good, sitting nicely between 65-72.
What might cause this?
I suppose this would still be true even if it was the same card every time.
Obviously if there was something critically wrong that the card would never reach a higher rate.