Re:Upgrade Raspberry Pi 4 with a NVMe boot drive
by mmastrac on Monday November 23, 2020 @02:45PM
(#25190831)
Same here. I even went as far as finding barrel-jack to USB connectors so I could wire thicker-gauge cables to the Pi.
In the end I gave up on trying to find low-ohm cables and just wired directly to the power supply. It's surprising how many cables just plain suck.
Measured the resistance of the "USB charging cable" I had used for it and found it was 1 Ohm! So when the Pi peaked at 1A current draw, the cable dropped 1V.
Swapped it out for something proper (<0.1 Ohm), and haven't had issues since.