Okay, I was just curious, I tried the other evening, and although it booted with 1.04b, and the same 6.2.2 pat as you, it failed to initialise the Ethernet interface.
No problems, was just curious, I've going to archive this mobo!!!!
Because I've just got two new mobos, for custom NAS, which work with DS918+ 1.04b, and 6.2.2 Update 5, not tried the new 6.2.3-25423///
Have you tried PLEX, and the h/w encoding ?