There is a lot of information already on the forums about power supply for the Pi 5.
The best option is to use an official power supply. This has support for USB-PD, and will negotiate a 5v5A supply correctly.
If your circuitry does not support USB-PD then the system will default to assuming 5v3A maximum. There are config.txt and bootloader flags to disable the checking and warnings if you are supplying 5v5A via GPIO (or indeed non-PD negotiated USB-C)
That said, are you sure you need 5A? That would be a Pi5 running full tilt with lots of peripherals attached via USB and GPIO. You can often get away with 3A.
The best option is to use an official power supply. This has support for USB-PD, and will negotiate a 5v5A supply correctly.
If your circuitry does not support USB-PD then the system will default to assuming 5v3A maximum. There are config.txt and bootloader flags to disable the checking and warnings if you are supplying 5v5A via GPIO (or indeed non-PD negotiated USB-C)
That said, are you sure you need 5A? That would be a Pi5 running full tilt with lots of peripherals attached via USB and GPIO. You can often get away with 3A.
Statistics: Posted by jamesh — Wed Oct 16, 2024 10:44 am