This is the Supermicro X10SDV-F so it does not have the 10Gb PHY.Hovering around 25W idle is pretty nice for an octoproc at 64GB of RAM. Is your pre-prod sample merely without the 10Gb BASE-T PHY or does it lack 10Gb networking entirely? If there's a mITX on the horizon that can idle with a 10Gb SFP under 35W I might have to brandish a large wad of currency and angrily wave them in the face of a sales rep demanding he desist in informing me of said product and relieve me of said paper post-haste.
I am actually a bit shocked at the power consumption of the system under full load. TDP != power consumption, but I was surprised to see how off I was.