Jupiter FW 0.99
Power at Wall Down from 748W to 746W
You're hitting 750w? Bizarre, I'm @ 690w with 98.1
You probably have a more efficient power supply.
My el cheapo 12v switching supply is reading 184 watts at the wall while bertmod says 133watts. If we ignore the BBB, I suspect bertmod does, the efficiency is 72.3%. If I scale up for a Jupiter it's 736 watts at the wall.
Bear in mind that bertmod is reporting the DCDC output power.
Measuring power "at the wall" will add in the overhead of the ATX power supply, and the overhead of the DCDC converters themselves.
Also the BBB, the control board, and all the fans are not included in bertmod's reported power.