I tried the same and have similar problems.
I configured the setup on another mainboard, with graphic interface. Changed the IP address and adjusted the boot procedure to run the 32bit system. I still found out witch config files have to be change to get an output to the serial interface. But when the Open-E logo appears it's over.
I see, the system is starting up, I can't get connection over the network. But it seams the software is running. If I press the start button on the front the system shut down after a few seconds.
Even a ping or ssh is not working.