Thanks for the bios dump - but the same monitor which shows normally boot screen/ unraid login and stuff in TXT mode - turns OFF soon as i start the Win10 VM with linked DUMP file.   I assume my dump is right as i have 10x Zotac 1070 cards , so should be done right.   Cards have their own group even without Enable PCIe ACS Override:set to NO   IOMMU group 0: [1022:1452] 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Hos