4090, X670hero, 7800x3D works fine. The 4090 is driving 4 displays with the latest Nvidia drivers without problems.
Plugging in a display into the HDMI port on the motherboard results in no display on any monitor. Post codes indicate that the boot sequence completes normally. What do I need to do to fix this?
However, if I plug the 5th monitor in AFTER boot to windows, it works. What do I need to do to fix this so that the pc can boot with the hdmi connected?