Quoted from mtgedney:I have given up on the nvram. I am sure it is no good now. Replaced original battery and u4 and she is back up and running. In total agreement with the fickle 6803.
That was a pretty bad experience. Not sure I want to do too much more toying with this board. For now we will just hope the battery never leaks.
It will leak. They always do. It's a ticking time bomb.