Biostar X370 GTN no image with integrated graphics

[walterohnename1]

So, i bought a new Biostar X370 GTN, an Athlon 200GE with Radeon Vega Graphics, 8gb Ram, 120GB SSD (clean, nothing installed) and a 90w pico PSU (Building in a NES Case).
So i went to put everything together, looks good so far. It "started" the first time ( cpu cooler spins, power led lights up) but i get no signal at my monitor!
For video output, i used a HDMI cable on my 60Hz Samsung monitor.

Anyone knows how to fix this problem?

Thank you in advance!

 

[alexoiu]

The board might need a BIOS update for that CPU.

 

[walterohnename1]

The board might need a BIOS update for that CPU.

I just looked it up, it says it supports AMD Ryzen CPUS, but a little bit down below it says "CPU Support: AMD A-series APU ....etc".
Link to the Datasheet i downloaded: https://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=879

Do you know if it is like a answer to my problem? Im really annoyed by now since the guy i asked if it would work sayed yes...

 

[alexoiu]

Here: https://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=879#cpusupport
"Please Ensure You Had Updated the Latest BIOS Before Install the Raven Ridge CPU".

 

[walterohnename1]

Oh boi am i blind... Any way to upgrade/flash the BIOS without a Ryzen CPU?
I mean i know some motherboards (like my main rigs Maximus VII Ranger) support BIOS Flashing, but i dont see a way to do this on this Motherboard. Any advice for this without buying a Ryzen CPU ?


EDIT

I found out how to flash it, but it didnt work...
Last page on this worksheet: https://www.biostar.com.tw/app/en/manual/bios_update.pdf

Any tips how i could get it to work without buying a new Rycen CPU / going to a shop?

 

[alexoiu]

Try contacting the retailer and, based on their answer, contacting AMD for a boot kit:
https://www.amd.com/en/support/kb/faq/pa-100