@nil @moira many thanks for looking into this. I won't be able to try it soon, but when I do and run into this, I'll be sure to reach out!! You seem to be using the program for the SunPCi III whereas I have a SunPCi II. Possibly they are different. I still had the Ultra 5 on my desk in 2010-2011, so possibly the check isn't in that version or I indeed didn't boot up the card after 2009.
There is relatively little point in emulating that card btw. (A 2nd QEMU x86 instance will help more.)
@jschwart @moira for sure, i only emulated it since i wanted to get this error message and don't have a sun workstation of my own, let alone a SunPCi. if i wanted to run old x86 software i'd use 86Box or DOSBox. but it would be nice for the sake of preservation, if really impractical, if someone could implement an emulator for the SunPCi.