My complete system (CWWK board with N305 CPU, 48GB RAM, 4 HDDs, 2 SSDs, 1 NVMe, 4 fans, Corsair SF600 PSU) draws about 20W from the wall at idle (HDDs not spinning). I haven't found a way to get much lower than that yet. But the 20W include the power loss of the PSU, which is about 7W. So the...