I only use this board, i prefer to set it up manually, pci gen 2, primary video igfx, boot set to other os, 4g enabled, igfx enabled, ac always on. It always worked.
Use the latest bios 23a.
You probably have riser or driver problems.
Use the latest bios 23a.
You probably have riser or driver problems.
I have 3 of these boards and couldn't get the 6th GPU to work in Windows...struggled with this for a couple days until I saw your post. The BOIS settings you recommend did the trick, thanks for this!