Why are you using such high voltages?
With HWINFO I'm looking how much a card draws and decrease the voltages until there's no variation. Most of them fall below 850mV. And I don't alter powlim.
what do you use to undervolt?
in windows or linux
amazingly -cvddc / -mvddc does not work for me in windows
even in linux i.e. simplemining undervolt does not work
i can only use trixx for my sapphire rx 470 to use 825mV