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Again at this level I’d question the measurement equipment.

I’m not, because unless you have invented some losses conversion circuit I can’t be. The power supply and conversion aspects alone prove this is a measurement error.

Honestly, I question the measurement equipment and this conversations direction of travel has changed somewhat. I think we can safely say the system isn’t able to run at 2 watts from the wall even if shutdown.

Yeah, unless it was dirty cheap I wouldn’t bother and no way is that thing fitting in a 2 watt total budget. It sounds next to useless, probably because it’s been made under contract in China by the absolute lowest bidder possible. I’m pretty sure I open my drawer of dream and build something...

This UPS sounds super crapola, I’m not even sure UPS is the correct term TBH. DC-DC power supply with a AC charger tacked on?

So that other board to the right is responsible for changing/managing the cells?

Definitely is strong word. There is no way that system is pulling two watts from the wall, especially with that box of tricks sat in between. Why did you pick protected ICR cells BTW? To drop the management system?

It’s not, It’s off by a factor of at least 3 and more likely a couple of factors of that. That system isn’t pulling 2 watts. Adding a UPS into the mix would only increase the power draw. Going back to the external power supply would give better results.

I’m sure you have, but that reading is almost certainly wrong. Assuming you was powering this system at mains voltage with zero conversion, it would still be over 2 watts of power use. 14nm quad cores aren’t that great for power efficiency and neither are the typical laptop brick PSU’s. For me...

I think we can safely assume the 2 watt reading is way off.

I think it’s more than a little off TBH. Even spun down a few HDDs could easily pull over that alone.

I’d question the resolution of your monitoring equipment at that point.

The power of Atom cores sat idol. Like coiled springs ready to explode into action before getting cooked by the other cores.

TBH sandys, I’d happily burn a few more to have that hardware feature set.

IPMI is a useful feature to have. Is that an Asrock Rack board?

That’s quite a NAS you have. Lots of horsepower.

What issues?

It can be depending on what is connected.

The biggest power draw will be the monitor.

The CPU power draw at low use states is largely irrelevant, in fact it hardly relevant at all as other components matters more. The PSU being being critical at very low loads.