Originally Posted by
Eracine
Main work RAM in laptops isn't static - it's DRAM and the "D" stands for Dynamic. It requires periodic refreshes (not just some standby voltage) to keep its data - meaning the memory controller still needs to go through all possible addresses every few milliseconds to ensure nothing is lost. And even if the memory has "auto-refresh" features (most do, nowadays), the power consumption during those AR cycles is much greater.
that's true, but the amount of power used to refresh it is extremely small and any rfi that might be generated isn't going to propagate much past the enclosure, if it even gets that far.
Well, that still accounts to a 10mA/h draw, i.e. several orders of magnitude larger than "a couple of microamps". :-) YMMV, of course.
well, 10ma/h is just 2.78 μa/s
