@ All with Vega 56 with Hynix HBM2:

I read here, that the most V56 with Hynix having issues if the frequency is higher than 890Mhz.

I have one V56 Hynix running well @890/0915mV
A second V56 Hynix has issues with this settings and brings GPU errors

What voltages do you apply in Wattman/OverDriveNTool/Regmods???

Please let me know. THANKS