MSI Pro B650-S WiFi + Ryzen 7950x : no HDMI signal after setup

[pigdi157e02e2]

Hello,
I just finished to setup my new PC but I can't access to BIOS as there is no HDMI signal. It seems the integrated GPU of my 7950x is not taken in account.
I have another PC : MSI Pro B650M-A WiFi + 7950x and I have no problem with that one.
I had to add a GPU to be able to acces to the BIOS then install ubuntu.
Everything was ok until I shutdown, remove the GPU and reboot : no network and no HDMI signal.
Any idea how to fix that ?
Best regards
Eric

 

[zerijelly]

Could you update BIOS to the latest 7E26v1G3 to check? https://www.msi.com/Motherboard/PRO-B650-S-WIFI/support#bios

 

[pigdi157e02e2]

it seems better : i have hdmi signal from my 7950x !
But I lost network : if I don't add a GPU, I have no network. Any idea ? Thanks