X570 Phantom Gaming 4 -> Black Screen

Hi there,

I am assebeling a new PC and do not have no prior Hardware to use in my testing.

Problem description:
When connection the MoBo with a HDMI cable to a display no BIOS settings are seen after startup.

Setup:
After installing CPU, CPU Fan, Ram, M2 SSD and connecting properly with the PSU the system seems to start. I recognize this by the fans starting and the "Post Status Checker" running through the red lights several times and thereafter the illumination of red light stops (which is good as far as I understand).

Analysis:
A little sticker on the MoBo says P3.20 which should support Ryzen 5000 processors, as per the bios docs.
If I understand correctly this list represents the supported RAM Modules, my module (see in Hardware) is not present, how big of a Problem is this £

Questions:
Did I miss something£
Is the RAM the Problem£
How can I Update my BIOS on this MoBo it odes not seem to have a bios flaschback button£ (is this even necessary£)
Why isn't the Post Status Checker giving me any indication on these modules£
I am a little bit confused by these two lines in the bios description can someone explain them to me like I'm 5£
      *To support Renoir/Ryzen£5000 processors, it requires to update the BIOS with Matisse CPU.
      *If you use Pinnacle Ridge or Picasso, please refer to the "Steps to Update Renoir/ Ryzen£5000 Supported BIOS" to update the BIOS.

Used Hardware:
Motherboard: X570 Phantom Gaming 4 WiFi ax
Processor: AMD Ryzen 7 5800X
Ram: cmk64gx4m2E3200c16

Thank you for your help,
curtz

Well the onboard Graphic Card only works when you also have a graphic chip on your processor, which I don't.
Added Graphic Card, works fine now.