I am getting the dreaded start4.elf is not compatible, get newer software. This hardware is listed as supported by UM, and I don't understand it. I am able to boot Ubuntu 20.04 Server and Raspberry PI O/S. It seems it is definately a memory issue.
This one is better slated for server level duties I guess, but I thought 2Gb was the minimum and thought I'd try it.
Jim