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Based on the provided information, I will attempt to help you locate the issue and provide guidance on how to design for safe operating conditions.
Analysis of the issue
The unexpected power-offs of the Jetson AGX Orin 64GB Devkit units during testing suggest that there might be a thermal or power-related issue. The kernel log before the power loss indicates a thermal event, which could be related to high resource usage leading to overcurrent or temperature problems that trigger hardware protection.
Thermal Management
The Jetson AGX Orin series has a thermal management system that monitors the temperature of the module and takes actions to prevent overheating. The system has multiple thermal zones, each with its own temperature sensor. The thermal management system can throttle the CPU and GPU clocks, reduce the power consumption, or even shut down the system if the temperature exceeds a certain threshold.
Thermal Specifications
The thermal specifications for the Jetson AGX Orin series are not explicitly mentioned in the provided context. However, according to the NVIDIA documentation, the Jetson AGX Orin series has a maximum operating temperature of 105°C (221°F).
Power Management
The Jetson AGX Orin series has a power management system that monitors the power consumption of the module and takes actions to prevent overcurrent. The system has multiple power rails, each with its own current limit. If the current exceeds the limit, the system can throttle the CPU and GPU clocks, reduce the power consumption, or even shut down the system.
Safety Usage Thresholds
To design for safe operating conditions, you should ensure that the system operates within the recommended temperature and power consumption ranges. The recommended temperature range for the Jetson AGX Orin series is between 0°C (32°F) and 105°C (221°F). The recommended power consumption range is not explicitly mentioned in the provided context, but it is typically around 40W for the Jetson AGX Orin 64GB Devkit.
Design for Safe Operating Conditions
To prevent unexpected power-offs and ensure safe operating conditions, you can take the following steps:
- Monitor temperature and power consumption: Use the thermal management system and power management system to monitor the temperature and power consumption of the module. You can use tools like
tmon and powerctl to monitor the temperature and power consumption.
- Throttle CPU and GPU clocks: If the temperature or power consumption exceeds the recommended threshold, throttle the CPU and GPU clocks to reduce the power consumption and prevent overheating.
- Use a heat sink or fan: Consider using a heat sink or fan to improve the cooling of the module.
- Ensure proper airflow: Ensure that there is proper airflow around the module to prevent overheating.
- Use a power supply with sufficient capacity: Ensure that the power supply can provide sufficient power to the module. In this case, the power supply can provide up to 16.45A, which should be sufficient.
Comparison with other Jetson modules
The Jetson AGX Orin series has similar power management and thermal management features as other Jetson modules, such as the Jetson Xavier NX series and Jetson Nano series. However, the specific thermal and power management configurations may vary depending on the module.
In conclusion, the unexpected power-offs of the Jetson AGX Orin 64GB Devkit units during testing are likely related to thermal or power-related issues. To design for safe operating conditions, you should monitor temperature and power consumption, throttle CPU and GPU clocks, use a heat sink or fan, ensure proper airflow, and use a power supply with sufficient capacity.
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