I have a little problem...
After some tinkering i was able to bring my RX580 8GB cards to stable 29-30Mh/s. I have 5 of those cards and 1 of the 4GB version (which is also pretty good i have to admit).
But now to my problem, if i start the cards all individually they all bring the same performance, maybe +- 0,1 Mh/s, but when i start all of them together two of my cards need longer for the DAG creation 7200ms instead of the other 4900-5500ms .
And they only hash at around 20-22Mh/s.... I have no idea what i can do to bring some up with their buddies and like written further up.... on their own they are entirely capable of going 29-30 ....
Does anybody has any idea what i can do to improve my little problem ?
Sincerely
Sack
I have noticed same but only difference is 0.5 to 0.8 Mhz in my case if I run multiple cards, even have to lower clock a little to keep things stable, though I have 1060 and RX580s mix on same rig. But with 8-9 Mhz difference, that is odd. Have considered your PSU , is it not able to distribute power or its underpowered somehow for all running at same time ?
BTW, I don't think DAG creation time has any issue, with me, they usually takes around ~7000-8000 for each , yet all working fine.
I tried messing a little bit with the PSUs, sadly there was noch change again :/ Any other ideas ?