Dear Alex, I hope this message finds you well. I have been struggling with the following issue for some time and would appreciate your help.
When I connect my monitor to the VGA port on the motherboard and start up the computer, I can see the boot process and enter the BIOS. I can also enter the Win11 system normally. Then I unplug the monitor from the VGA port on the motherboard and plug it into the DVI port on the graphics card, I can see that the graphics card is indeed working properly because the display quality improves.
However, if I connect the monitor to the DVI port on the graphics card before starting up, the monitor will remain black and display a "no signal" message, and I won't be able to enter the BIOS or operating system.
After consulting the manual, I found that I can set the display to use the graphics card instead of the VGA on the motherboard during the startup process by setting the "advanced" -> "legacy video select" option to "External". However, my entire
"legacy video select" option is empty and I cannot set it.
Although my BIOS version number is R14, as displayed under Main->Project Version, I initially thought that my version might not be up to date.
My motherboard is MZ72-HB0-00.
Would you kindly advise me on how to make the motherboard use the graphics card's port for display throughout the entire startup and boot process, instead of using the VGA on the motherboard during startup and switching to the DVI port on the graphics card later?
Thank you in advance for your assistance.
My empty "legacy video select" :
The normal "legacy video select" option should be like below: