For RX 5xx users, May I ask which driver versions are you using?
Since AMD blockchain driver doesn't let me set mclk on one of my cards, i reverted back to using normal drivers, but now the current up to date drivers fluctuate both the core and mclk and drop the hashrate of both cards
I'm using the second-to-latest latest blockchain drivers (aug11) + Claymore 9.8 with no software-related problems. I embedded my overclock and underclock directly in BIOS and I control the undervolt using Trixx afterwards.
The last good drive is still 17.7.1. No point installing new ones, they only break stuff and do nothing good, unless blackchain driver if you know how to overcome the issues.
See above. As long as you do same settings it would work.