I purchased a 1GB EspressoBin off of Amazon with the plan to run Armbian + OMV on it. Here's what it looked like upon initial boot with factory firmware. Which showed 1GB version.
DDR_TOPOLOGY is 4 : DDR3, 1CS 1G
Fill memory before self refresh...done
Now in Self-refresh Mode
Restore CAS Read and Write Latency
Restore termination values to original values
Exited self-refresh ...