I’ve just installed XCP-ng (media verified) onto my GMKTek nuc box.
When it boots I get this message
Not sure what it is, maybe ye have seen this before?
update your BIOS if possible. These are BIOS errors. Another option is to lower loglevel so you don’t see them. Read this, https://forums.linuxmint.com/viewtopic.php?f=42&t=371358
HTH
I’m not too hopeful for a BIOS update, or even finding an original BIOS for it.
GMKTek NucBox G3 Plus