Incorrect Fan Header Information for Jetson Orin Nano Developer Kit

Issue Overview

Users of the NVIDIA Jetson Orin Nano Developer Kit are encountering confusion regarding the fan header specification. The official documentation lists an incorrect part number for the fan connector, which does not match the actual connector present on the device. This discrepancy is causing difficulties for users attempting to implement custom cooling solutions, as they are unable to find the correct mating connector for their alternative fan setups.

Possible Causes

1. Documentation Error: The primary cause of this issue is an error in the official documentation for the Jetson Orin Nano Developer Kit. The documentation incorrectly lists a fan header part number that is actually for a different model (Jetson Nano).

2. Confusion Between Models: There seems to be a mix-up between the connector specifications for the Jetson Nano and the Jetson Orin Nano, leading to the incorrect information being published in the documentation.

3. Outdated Information: The documentation may not have been updated to reflect the latest hardware revisions or changes in component suppliers.

Troubleshooting Steps, Solutions & Fixes

1. Correct Fan Header Information:

   • The actual fan header on the Jetson Orin Nano Developer Kit is an Aces Electronics, Part # 50275-00471-003.
   • This connector mates with the 50276 series connectors.

2. Identifying the Correct Mating Connector:

   • For custom cooling solutions, users should look for connectors compatible with the Aces Electronics 50276 series.
   • These connectors will have the correct pitch and form factor to match the on-board header.

3. Documentation Update:

   • NVIDIA has acknowledged the error and plans to update the Orin Nano documentation.
   • Users should periodically check the official Jetson documentation for the most up-to-date information.

4. Verifying Connector Compatibility:

   • Before purchasing or designing custom cooling solutions, users should visually inspect the on-board connector and compare it with the specifications of the Aces Electronics 50275-00471-003.
   • If possible, obtain a sample of the 50276 series connector to ensure proper fit before finalizing designs.

5. Community Resources:

   • Users can refer to community forums or NVIDIA’s developer community for the most recent information and experiences from other developers working with the Jetson Orin Nano.

6. Contacting NVIDIA Support:

   • If uncertainties persist, users should contact NVIDIA’s technical support for confirmation of the correct connector specifications.

7. Best Practice for Future Projects:

   • Always verify hardware specifications directly on the device or with the manufacturer’s support team, especially when official documentation seems inconsistent with physical observations.

By following these steps and using the correct connector information, users should be able to successfully implement custom cooling solutions for their Jetson Orin Nano Developer Kit.