Interchanging Orin Nano and Orin NX Modules on the Jetson Orin Nano Developer Kit

Issue Overview

Users of the NVIDIA Jetson Orin Nano Developer Kit have raised concerns about the interchangeability of the Orin Nano and Orin NX modules on the same carrier board. The primary symptoms include uncertainty regarding compatibility, particularly when using different RAM configurations, such as the desire to swap an Orin NX 16GB module into an Orin Nano Developer Kit. Users have reported that while the Orin Nano Developer Kit operates normally with JetPack 6.0, questions arise about whether it will continue to function correctly if the module is replaced. Additionally, users are concerned about booting issues related to the absence of an SD card slot on the Orin NX module, which is present on the Orin Nano module.

The problem occurs during attempts to upgrade or modify hardware configurations, especially when users wish to leverage the increased memory capacity of the Orin NX. The issue has been consistently noted by multiple users in the forum discussion, indicating a significant impact on user experience, particularly for those looking to enhance their AI applications or development projects.

Possible Causes

• Hardware Incompatibilities: The Orin NX lacks an SD card slot, which is essential for booting with certain configurations. This could lead to boot failures when attempting to use it with an existing SD card setup.
• Software Bugs or Conflicts: Using different modules may introduce software compatibility issues if the JetPack version does not support both modules adequately.
• Configuration Errors: Incorrect settings during module swapping could prevent successful operation.
• Driver Issues: The absence of appropriate drivers for the new module could lead to functionality problems.
• User Errors or Misconfigurations: Users may not be aware of necessary steps for flashing or configuring their systems when changing modules.

Troubleshooting Steps, Solutions & Fixes

1. Verify Compatibility:

   • Ensure that your JetPack version is compatible with both modules. Currently, JetPack 6.0 is reported to work with both.

2. Check Boot Configuration:

   • If using an NVMe SSD for storage, ensure that it is properly flashed and configured before swapping modules. The QSPI bootloader must be updated for the new module.

3. Flashing Procedures:

   • For users transitioning from an Orin Nano to an Orin NX:
     • Flash the QSPI of the Orin NX using SDK Manager.
     • Reflash the NVMe SSD if necessary to ensure compatibility.
   • Follow these commands for flashing:

     sudo ./sdkmanager --flash all
     

4. Testing Setup:

   • Test with minimal configurations first (e.g., only essential peripherals connected) to isolate issues.
   • If problems persist, revert back to the original configuration and gradually introduce changes.

5. Documentation and Resources:

   • Refer to NVIDIA’s official documentation for detailed instructions on flashing and configuring your boards.
   • Check community forums for shared experiences and solutions from other users who have successfully swapped modules.

6. Best Practices:

   • Always back up existing configurations before making hardware changes.
   • Keep your development environment updated with the latest software patches and drivers.

7. Unresolved Issues:

   • Users should be aware that while some configurations may work theoretically, practical results can vary based on specific setups and additional hardware used.

By following these structured troubleshooting steps and solutions, users can effectively manage their Jetson Orin Nano Developer Kit configurations while minimizing potential issues related to module interchangeability.