Thanks for all of the help. I've purchased a Gigabyte GA-B250-Fintech motherboard, and was able to get 9 cards running on the system. So the 8 card limit does appear to be a BIOS issue with the ASUS B250 Mining Expert Here are some of my experiences with mining motherboards. https://bitquant.wordpress.com/2018/03/07/mining-motherboards-notes/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180307/ebb6d953/attachment.html>