Seems that original vbios of this card model from Zotac doesn’t support UEFI boot environment, so it lacks the EFI GOP driver.
I would recommend to update the vbios from TPU, i see some “Unverified ZOTAC” Zotac 610 vbios or “Unverified Generic NVidia” on their database, that supports UEFI
You can also as alternative, try to insert a GOP driver in the current vbios dump with this
tool, as long as the ROM IC has enough space.
This is to avoid messing with the mb bios, that has less percentage of succeedingg.
This board supports CSM Legay and UEFI and for sure there’s no “black list” for GPU cards.
Of course all these actions @ your own risk
Good luck.