Unable to access BIOS on new ROCK Pi X

Setting up Rock Pi X for the first time. I can’t access BIOS whenever I press the delete button at system start. I’ve tried repeatedly pressing it, and I’ve tried pressing and holding. Neither take me to the BIOS page. What does happen is the screen remains blank and the LED lights are on.

Of note, at the first system startup, I just inserted a USB stick with Ubuntu 22.04, and installed the OS; that worked normally. And, if I don’t press the delete button at startup, Ubuntu boots normally.

I’d like to be able to access the BIOS though.

Any recommendations?