Reduce The Pi 5’s Power Consumption At A Stroke

The Raspberry Pi 5 is the new wunderkind single-board computer on the block, so new in fact that users are still finding out its quirks. One of those quirks is a surprisingly high power consumption when powered down, despite halting the SoC it leaves the power on and consumes over a watt even in standby. [Jeff Geerling has a solution, and it’s a simple config change.

It’s useful to know how to fix this and we’re indebted to him for finding it, but it’s hardly the most complex of hacks. Where the interest lies is in why the board leaves the lights turned on when nobody’s at home in the first place. It seems that some HATs have an issue when the 3V3 rail shuts down but the 5V rail doesn’t. The Raspberry Pi foundation took the most compatible route and kept the rails on all the time. Perhaps future OS releases will come up with something more elegant, but at least there *is* a fix.

If you’re new to the Pi 5, you can take a look at our review of a preview model, and see why it’s the closest yet to a usable everyday PC that they’ve produced.

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• Source: https://hackaday.com/2023/11/06/reduce-the-pi-5s-power-consumption-at-a-stroke/