Did you check the memory manufacturer of the cards? Are all the cards from the same manufacturer?
I'll still recommend using Windows for the initial stage as it is easy to get the configurations in place and then make a transition to Linux.
they all have samsung mem. I will try windows today and tell you then. thanks so far!
If you will use Windows but like Linux and want to stick with Smos, just do 1 single click bios modification with Polaris bios editor and then reinstall Smos and the cards should be running at the supposed over 22 mhs speed.
I did so with 12 cards and Hive OS after trying desperately to make 12 cards to work on Asus B250 mining expert until the point I got tired and switched to Hive OS, and 360 mhsh stable, running even this day.