Thanks for the help and sorry for posting! My motherboard is OEM. Not long ago I did BIOS update using version 7267vG8. Integrated Graphics has stopped working shortly after this update. Unfortunately I do not have backup. The motherboard is broken so far. I wanted to use the original BIOS to make it work again. When I found this thread the hope came back. AnG3L uploaded the backup but the link has expired...
@AnG3L has been online last Friday. Maybe PM him if he still has the dump / can dump it once more....