AMIBCP 4.53 ERROR

I'm loading a BIOS from an HP Z820

When I load it I get this error
"ROM image contains invalid packages. Setup tab and BIOS String tab will not be shown."

Any ideas on how to get around this.

This happens even with the .bin downloaded from their website.  if I try a 5.X AMBCP it tells me it's not an at ATPIO V so i am fairly sure its ATPOI IV