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Huh. Maybe I had a bad power supply, then. Interesting.

This is compellingly saying that I was too hasty in assuming the low voltage warnings were from the 18W supply topping out. Thank you for this.




Seen same power warnings, when powered by RP4 5V/3A. Had to use 5.1V power supply to get rid of them.


It's been that way since the RP3 - heavy load resulting in rainbow square. Use the official power supply labelled 5.1v and the square disappears


Maybe it's a spiky 9.7w. :-/


A very real problem. Also power supply/chip tolerances and a little extra gunk on a pin somewhere can line up unfavorably.

Personally, I had tons of power issues due to underspec cables with a Pi4. Irritating.




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