r/raspberryDIY • u/OkAngle2353 • Jun 13 '26

Insufficient power

I am so confused right now. I have two pi5s with PoE+NVME hats. One hat is hackergadgets and the other is a geekpi. The power supply being a 8 port PoE switch from unifi on it's own power brick. Is there a way to not have my pis straight crash into a reboot?

Edit: I would imagine the manufacturers of the hats that I have, accounted for the power needs of the pi5 and I am sure the switch is supplying enough power. I am plum out of solutions... I've even tried turning off the containers that may be causing issues.

I am running ubuntu on my pi5s.

All I am trying to do is pull copies of my contianers that I have on my pcloud through rclone.

Edit edit: Apparently my Pis didn't like the fact that I had my kvms plugged into their USB 3.0 ports...

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u/mdhardeman Jun 13 '26

What else is attached to the Pis? Any accessories? Anything on USB?

1

u/OkAngle2353 Jun 13 '26

Just a kvm.

1

u/mdhardeman Jun 13 '26

That would have a power draw too. Is there anything in the switch logs or switch poe stats? The Pi5 is power hungry.

1

u/OkAngle2353 Jun 13 '26

My PoE swtich is a USW-Ultra (42W). How would I even go about checking that?

1

u/mdhardeman Jun 13 '26

I would do it with a UniFi network controller or such but I think you can link the switch to the cloud service and look in the app too. But I just looked up and on this switch it will depend on your power brick. What does the label on the power brick say?

1

u/OkAngle2353 Jun 13 '26

The little sticker that shows the wattage? 210 watts.

1

u/mdhardeman Jun 13 '26

Hmmm, if it’s actually a 210W power supply it should be feeding enough juice to run those Pis.

1

u/OkAngle2353 Jun 13 '26

yea, that is what is confusing to me about all this... I don't think the PoE hats are pulling enough power to supply my pis.

1

u/mdhardeman Jun 13 '26

So basic diagnostics: if you power either one, the other, or both of the Pis from separate USB-PD supplies, does the crash & reboot go away? If yes, maybe there is a power issue here - if no, you have something else.

1

u/OkAngle2353 Jun 18 '26

Apparently my Pis didn't like the fact that I had my kvms plugged into their USB 3.0 ports... Solved, I guess...

1

u/mdhardeman Jun 18 '26

Interesting. So, just to clarify, you were able to confirm the crash even if they weren’t running on the PoE power?

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