Over current in orin nano

[user96785]

i have over current but i can’t find where it is happened.
i try to check it by grep “” /sys/class/howmon/hwmon/oc*_throt_en but i dont have this file, so how am i check what is causing this warning?
i am using jetson orin nano 8GB sd card version with jetpack6.0.
also it turn off after runing for couple days i am not sure why? will it be related?

i find the new location of the file but now i have another problem, what is the best solution ? do i increase the limit ? will it burn the device ?

[WayneWWW]

What power mode are you using? OC3 means instant power over peak.

Jetson Orin Nano has it power limit which cannot be exceed. Once it is over the peak, OC even will be triggered and trigger throttling.

NANO/JP 5.1.2: System throttled due to Over-current

No, OC1 means under voltage OC2 means VDD_IN average power OC3 means VDD_IN instant power You can find more details in Jetson Orin Nano Series, Jetson Orin NX Series and Jetson AGX Orin Series Please share following information. $ cat /etc/nv_boot_control.conf /etc/nvpmodel.conf

[user96785]

I am using 15W mode ,and I have seen that post. I try to add but it return error. I will share the error tomorrow.

[WayneWWW]

Hi,

My point is OC just means your usecase is overloaded on Orin Nano spec.

[user96785]

Will it cause the nano to shutdown? Cause after I run it for five days it will suddenly shutdown

[WayneWWW]

It sounds actually a separate issue.

If the device is shutdown but not “reboot”, then please check the power is stable or not.
Also, check if any overheat situation.

If you are talking about a situation that only happened once and you want to know the reason, then there is no precise answer to tell.

[user96785]

nvidia@ubuntu:~$ sudo vim /etc/nvpmodel.conf

nvidia@ubuntu:~$ nvpmodel -m 2
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/online: 13
NVPM ERROR: failed to write PARAM CPU_ONLINE: ARG CORE_0: PATH: /sys/devices/system/cpu/cpu0/online VAL: 1
NVPM ERROR: Error opening /sys/devices/platform/gpu.0/fbp_pg_mask: 13
NVPM ERROR: failed to write PARAM FBP_POWER_GATING: ARG FBP_PG_MASK: PATH: /sys/devices/platform/gpu.0/fbp_pg_mask VAL: 2
NVPM ERROR: Error opening /sys/devices/platform/gpu.0/tpc_pg_mask: 13
NVPM ERROR: failed to write PARAM TPC_POWER_GATING: ARG TPC_PG_MASK: PATH: /sys/devices/platform/gpu.0/tpc_pg_mask VAL: 240
NVPM ERROR: Error opening /sys/devices/platform/gpu.0/power/control: 13
NVPM ERROR: failed to write PARAM GPU_POWER_CONTROL_ENABLE: ARG GPU_PWR_CNTL_EN: PATH: /sys/devices/platform/gpu.0/power/control VAL: on
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: 13
NVPM ERROR: failed to write PARAM CPU_A78_0: ARG MAX_FREQ: PATH: /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq VAL: 1190400
NVPM ERROR: Error opening /sys/devices/system/cpu/cpu4/cpufreq/scaling_max_freq: 13
NVPM ERROR: failed to write PARAM CPU_A78_1: ARG MAX_FREQ: PATH: /sys/devices/system/cpu/cpu4/cpufreq/scaling_max_freq VAL: 1190400
NVPM ERROR: Error opening /sys/devices/platform/17000000.gpu/devfreq_dev/max_freq: 13
NVPM ERROR: failed to write PARAM GPU: ARG MAX_FREQ: PATH: /sys/devices/platform/17000000.gpu/devfreq_dev/max_freq VAL: 624750000
NVPM ERROR: Error opening /sys/devices/platform/gpu.0/power/control: 13
NVPM ERROR: failed to write PARAM GPU_POWER_CONTROL_DISABLE: ARG GPU_PWR_CNTL_DIS: PATH: /sys/devices/platform/gpu.0/power/control VAL: auto
NVPM ERROR: Error opening /sys/kernel/nvpmodel_clk_cap/emc: 13
NVPM ERROR: failed to write PARAM EMC: ARG MAX_FREQ: PATH: /sys/kernel/nvpmodel_clk_cap/emc VAL: 0
NVPM ERROR: failed to set power mode!
NVPM ERROR: optMask is 1, no request for power mode
nvidia@ubuntu:~$

[user96785]

no it does not happened once it happened ever time after i run the program for 5 days
i wll buy a ttl to usb tomorrow to check what may cause it but first i want to make sure there is no relationship with OC. i see someone have same issue but he is using jetpack 6 DP. i think my is already GA version.

/etc/nv_tegra_release

R36 (release), REVISION: 3.0, GCID: 36191598, BOARD: generic, EABI: aarch64, DATE: Mon May 6 17:34:21 UTC 2024

KERNEL_VARIANT: oot

[WayneWWW]

Just to clarify this again in case you didn’t understand.

Please make sure this is shutdown or reboot case. These two cases are different.

You can run tegrastats too in the serial console with your program and see what is the value before this error happens.

[user96785]

Thanks for support I will check that later . about the OC problems is that nothing I can do but reduce the load ? I am currently using Orin nano for 8 cameras detection and tracking. Should I reduce the number of camera or just ignore the warning ? Cause as you say it will already limit the current itself and won’t do any harm to device.

[WayneWWW]

Yes, this is product spec. You pick a Jetson Orin nano and this is the limit of this product.

If you want higher spec, Orin NX and Orin AGX should be selected.

The reason it didn’t harm the device is because we have throttling mechanism in the background. It will lower the performance of your usecase.