> I take it you are using coreboot? if you aren't you should, otherwise 
> you need to change the "primary video" option in the BIOS - which will 
> solve your issue.

Hi Tai,

no I tried to use Coreboot with default settings (Seabios), compiling and 
flashing the .rom on the chip was easy. But with Coreboot BIOS the screen 
stayed black. What made me change back to the default BIOS was, is the fact 
that the CPU fans got really loud (full-speed) shortly after booting. I removed 
some of the RAM which at least solved the issue with the loud fans, so I 
assumed my RAM (Kingston ValueRam) might be incompatible with Coreboot ?

Do you have an idea why coreboot boot failed for me ?

Thanks a lot for the hint with VGA boot priority!
I have now found the VGA settings in the BIOS and did the following:
- Enable IOMMU
- Set GPU Boot Priority to "PCIe VGA" instead of "Onboard VGA"

This only partly solves my issue. Now, I can at least boot without issues when 
the PCIe graphics card is connected to the PCI slot. But I can still only 
finish the boot process, when I use the VGA Onboard graphics because I still 
get the same error message as before with the PCIe card:

ERST:   Failed to get Error Log Address Range.
BERT:   Can't request iomem region 
<00000000ccffa....................................>

Nevertheless, I still have a working signal on my VGA onboard graphics card and 
can simply continue with the boot process there by switching the connection 
from HDMI to VGA (hope you get what I mean).

After booting completely, there is still no signal on the PCIe VGA card.

Kind regards!

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