I got both boards running 7 cards
Another P version of the board coming tomorrow. After that my sack of M.2 NGFF to PCI-E 4x should arrive at SOME point, so I'll really be able to test. I know one thing for sure, these are dam good mining boards, especially if they didn't cost so friggin much. $160usd each at LEAST, but dam they are rock solid running 7 cards........unless you make a idiot setup error like I originally did.(The sata cable I used in each test, the same fucking cable tested over and over with horrible results.......yep, it was bad. Once I accidentally tried another sata cable, the first board fied up all 7 cards without issue. Used the bad cable to set up board two, and of course got 3-4 hours of frustration, until I realized it could be a bad cable....................which it was. Popped a new cable on board two and it fired up all 7 easy peasy)