Some comments for last few posts.
I think we covered storage devices already in this thread. I can go back onto my 804 later and list out the storage devices. Putting all the OS on sd card is not a good idea, so hopefully it's not there.
2nd, I see some noted the FPGA bin is same for 800-900, but that alone does not mean much. bin code can use dynamic functions (good coding), like "what ram can I access?". So, same code, different addressabe memory devices possible depending what's on the m-board.