This is using the modded BIOS trick and all the voltage settings as can been seen in the picture.
I have tried using drivers version 19.50 but got slower results by around 3 MH/s per card.
Using the latest 20 drivers from AMD resulted in my overclocks/undervolts not working and the hashrate being much poorer.
if i put 5.6.0 kernel my cards won’t mine and how come that yours are working and even memory type is detected ? What is the consumption on the wall for the machine ?
I just used the latest beta straight from HiveOS. I havent updated the AMD drivers or anything else.
It would help to know what cards you are trying to run.
As for the consumption at the wall I am using 1015 Watts total.
Have you done the Vbios mod to the memory timings? Not that that would change the fact that the cards arent being seen.
Also I have managed to lower the voltages a little more since then to 775mV on both vdd and vddci.
this dropped a couple of watts per card so now around 1000w at the wall.
Your memory temps are quite high. Do you have a high ambient?
I see you are trying to undervolt the memory as well.
If I set my vdd to 775 but then run amd-info in the console I see that the vdd is at 750mv.
So I am not convinced that what we are seeing in HiveOS is actually being delivered to the cards.
I know that none of this is any help for your initial question.
Just throwing thoughts around really.