I have been trying to power the Jetson Xavier NX via the GPIO header as ‘I think was mentioned’ in the Jetson Nano thread linked below. Using pins 2+4 (pin 6+9 GND). However when I feed in 5v regulated power it does nothing. I am starting to think this is not possible though do to what I found below…

It seems like the PoE Backpower Header – J18 is the only other option for powering the Jetson Xavier NX if you do not want to use a barrel plug, as stated in documentation. Also as for my question about 5v, @JerryChang stated that the Xavier NX’s GPIO pins are only able to provide power out unlike …

GPIO pins has the max current is limited by pin capability, 2A; instead of 3.5A of DC power Jack.

Okay so the PoE Backpower Header – J18 might be the best option for me if I want to avoid adding a barrel plug, It seems J18 is rated for 3A but if the input voltage is say 12v that should not be an issue. Unless there is a reason to use the barrel plug over J18?

hello Greg118, please also access Jetson Xavier NX Developer Kit User Guide . this 5V on [J12] 40-pin expansion header. it can only provide power out. they may not be used to deliver power to the developer kit.

Okay thank you. In that case is the Nano different? Or is the post by dusty_nv incorrect when it says? “The devkit may also be powered from pins 2+4 (pin 6+9 GND) of the J48 Expansion Header - up to up to 5V⎓3A per pin (5V⎓6A total).” Link in the first post here. From what I can tell, unless J48 …

Nano is different. J48 is the header to switch supply source. J41 is the 40-pin header with 5V input pins.

Nano can be powered from GPIO pins, but Xavier NX can’t.

Powering Xavier NX via GPIO, not powering on

Robotics & Edge Computing Jetson Systems Jetson Xavier NX

Greg118 August 20, 2021, 7:10am 10

I know the labels are different. Or are you saying they are different in the sense that we can power the nano off of the GPIO like it seems dusty_nv is saying.

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Powering Xavier NX via GPIO, not powering on

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