Are you guys capable of running 7 bios modded GPUs on this mobo with windows 10? I was playing with it for hours yesterday and couldn't get it to work properly. Finally I gave up and left the main GPU unmodded and everything else works fine with 7 GPUs.
For the windows to show 7 GPUs I had to enable in the bios, on top of the Above-4G Decoding, also the Windows OS configuration for Windows 8.1/10. Without enabling this windows option it just booted to black screen. Problem with this option enabled is whenever I try flashing the main GPU, even if it's the only GPU, it doesn't boot properly. It doesn't show the startup mobo bios messages, it just boots straight into windows. If I don't have display drivers installed before turning windows 8.1/10 mode to enabled it boots to black screen. If i try to uninstall drivers or update them, it starts booting to black screen. Then I have to unplug the GPU and use onboard GPU to turn the Windows 8.1/10 option off again. Without that option I can get 5 modded GPUs working without problems.
Shortly said, enabling the Windows 8.1/10 to boot into windows with 7 GPUs doesn't let you flash the main GPU properly, any idea why? Do you guys have the 7 GPUs working without enabling the windows 8.1/10 option, only the Above-4G Decoding?
I flashed the latest 1.7 bios, got 8 GB of ram and Celeron G3900, MSI RX 480 cards.