To be precise, in my case I’m measuring on the USB-C connector (I verified the meter’s accuracy previously and its error compared to my other voltmeters was less than 1%). What I got with the stock board with DDR5 at 5500, an SSD, fan at low speed, one port connected as GbE, and cix_audio_switch killed (since it’s making bursts) was between 10.3 and 10.5W:
After I set my DDR to 6400 and slightly overclocked and overvolted the DSU (1.3GHz/790mV ->1.5GHz/850mV), the idle consumption increased to 10.9-11.1W:
And with cpufreq set to “performance” (3.0/2.7/2.6/2.6 GHz), it reaches 11.3-11.5W:
I think it’s a bit high on the range of what should be expected, though it’s not dramatic either, it’s the same as what I’m measuring at the wall for my old Celeron J4105 (4 cores) with DDR4-2400 delivering a third of the bandwidth. Obviously both boards don’t exactly have the same performance, the O6 builds 4.3 times faster…
I suspect that the O6’s memory controller just doesn’t idle, and with 128 lanes at 3.2 GHz, it might start to consume quite a bit. Maybe one day we’ll have an opensource driver allowing us to adjust its speed at run time :-/