Thanks for the supersonic speed answer!
When/where does it occur?
> During startup the card is not correctly identified by Windows 7. Check via Device Manager shows the HDSP PCI card as a "unknown device". Error shows up if a project is loaded in a DAW, which use the input /output connections inside the project. So while it is recognized by the operating system "as PCI-card-something" the HDSP is not able to identify itself during startup / while the OS is booting and do the hardware requests.
Is it possibel to check the card in another slot?
Yes of course - this would be my hardware check. Also try it in another pc system is an idea. But before disconnect everything and open up the pc it is nice to know if someone can tell if this is at least > 50% a hardware error (or not). Cable management around the computer is a hell of a mess :-)
From the last 2 topics with "hdspf init fail" error, it seems to be a hardware problem (at least one of them).
Driver & Flash Updates
I did an update of the driver to the latest version and the last firmware / flash update is also installed - but this was at the end of 2020.