I think the more important question is "what kind of reception will I get from the FreeNAS forums if I turn up trying to run it on this ARM SBC with 4GB of non-

I think the more important question is "what kind of reception will I get from the FreeNAS forums if I turn up trying to run it on this ARM SBC with 4GB of non-ECC RAM?". If you've ever lurked there, you'll probably know the answer already.