Hi for some reason octopi always complains it's undervoltiing
What did you already try to solve it?
I have hard wired my pi (soldered wires direct to the pads on the bottom of the pi). Using a psu form a pc to power it. I even tested it with my bench psu slowly raised the voltage up to 5.5v and it was stil complaining.
Have you tried running in safe mode?
Yes
Did running in safe mode solve the problem?
No
Complete Logs
Will add logs if needed
Raspberry pi has heat sinks and a fan for cooling and was only drawing 350ma when hooked up to bench psu
The undervoltage is reported by the vcgencmd utility which is part of raspbian aka Raspberry Pi OS on which Octopi is based on.
You can find further information to this utility here
Did you check the get_throttled status on a different image?
I just don't understand. Yesterday it all worked perfectly done several prints of various lengths. But today had problem after problem with the dreaded lightning bolt . Pi kept crashing and stalling prints. How can it work flawles one day and be so bad the next?.
@Ewald_Ikemann asked what type but I'm just going to tell you that whatever you are using is marginal at best (i.e. will work one day and not the next) and should be replaced with a power supply that has at least 2.5A output (at 5V).
What you have is probably a charger, not a power supply. They may look the same but the circuitry inside is very different. Google for raspberry pi power supply and you will find multiple sources for what you need. This one from Amazon is a reasonable choice
Hi I use a psu from a pc rated at 400w its a decent make and provides stable current and volts. But it has also been tested on a 5a bench psu that is also stable.
How are you connecting these PSUs to the Pi? If it is via the GPIO pins rather than USB C power in, then it is likely that the connectors for these pins are introducing resistance that is dropping the voltage. The standard jumper leads for GPIO don't make great connections with the pins.
The RPi hardware (or low level kernel software) decides if the power pleases it or not. If it doesn't like the power and you believe that the power you are supplying should be good enough, then maybe the hardware the RPi is using is failing. Only solution for that is a new RPi.
I have to add to this that if the hardware detects undervoltage the pi still throttles to prevent brownouts so the system is still unstable. Whilst it is very rare that this circuit fails, maybe it does happen. Unexplained undervoltage problems should not be ignored, and this comment should not be interpreted that way and the only solution is the one mentioned, to get a new RPi to fix the circuit that is tripping due to undervoltage. You can't just ignore it if you think it is wrong.
. Pi kept crashing and stalling prints. How can it work flawles one day and be so bad the next?.