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VGA not detected at boot ProArt Z790 (one long beep, 3 short beeps)

Level 7


Looking for guidance.  I have a ProArt Z790 with i9-12900k, and a Nvidia Geforce GPU.  The i9 internal QuickSync GPU is enabled via the BIOS (for Premiere Pro) in addition to the Nvidia GPU.  I have two monitors hooked up to the Nvidia card via DisplayPort connectors.

Upon boot, I get blank screens with 1 long beep followed by 3 short beeps indicating VGA not present.  After about 15-30 seconds my displays become active and all is good in Windows 11. 

The problem is I can't get into the BIOS, at least not with seeing the BIOS screens on the monitor.  When building the PC on a bench I had a monitor hooked up to the VGA port on the Nvidia to get things configured in the BIOS. But the permanent installtion is as described above with 2 DisplayPort monitors.

Any ideas of how to enable video output during boot in this configuration?


Level 7

Problem solved.  Need to update the firmware on the Graphics card.  Now, DisplayPort output is showing BIOS boot screens and no VGA not available beep sequence.