Idle power is determined some by the system controlling its own load, but also by the PSU itself. HP and dell units lock down which PSU you can use with them, but lots don’t, meaning you can get a 19v 90W power supply or a 19v 175W power supply, but it won’t mean anything if the PSU doesn’t have the ability to scale down with load.

That’s what those bronze/silver/fold/platinum ratings are about on atx PSUs.

Anyway, good list. This was just a comment about that. Power is weird.