Jetson Nano switch OFF abruptly

Hi,

I am observing my Jetson Nano switch OFF abruptly.

Power supply: 5V, 50W DC jack

Running jetson Nano from SSD with latest release.
Using SSD shield
https://geekworm.com/products/nvidia-jetson-nano-25-inch-sata-ssd-hdd-shield
Connected 1TB Samssung SSD.

Using FAN
https://www.amazon.com/Noctua-NF-A4x20-5V-PWM-Premium-Quality/dp/B071FNHVXN/ref=as_li_ss_tl?crid=27DIIHQ63FHYV&keywords=noctua+a4x20+5v+pwm&qid=1567903014&s=gateway&sprefix=noctua+A4,aps,390&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExTFgwSUo2VERRNFhMJmVuY3J5cHRlZElkPUEwNTY2NDMzMUFHQlgwNk41VldCWiZlbmNyeXB0ZWRBZElkPUEwNDE5NTU1REtIMVZUUThMV1hIJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==&linkCode=sl1&tag=jetsonhacks-20&linkId=a08cef79d28dc5e89203e939d3855a14&language=en_US

And running fan control script
https://github.com/Pyrestone/jetson-fan-ctl

{
“FAN_OFF_TEMP”:20,
“FAN_MAX_TEMP”:50,
“UPDATE_INTERVAL”:2,
“MAX_PERF”:1
}

Connected external USB hub for keyboard and mouse which has independent power supply.

Are you frequently hitting this issue? Any application running when this error happens?

Yes it is hitting frequently. Not at any specific applications.
I am running Jetson nano at MAX power.

Anyone comes across such issue?

Do the power-offs occur if you run the Nano in 5W mode? (sudo nvpmodel -m 1)

If not, then it points to a power supply issue. Even though your power brick is rated for 50W, it may not deliver the required power consistently, or has voltage droop across the cable. I would check out some of the power supplies from this thread or the Jetson Nano Supported Components List, unless you are already using one of these.

Another issue you could check to debug power issue is to disconnect your SSD peripheral and see if the behavior still occurs.