Jetson Orin Nano Power Supply Damage Issue

Issue Overview

Users are experiencing damage to their Jetson Orin Nano core boards after installation on the same motherboard that successfully powers an Orin NX. The damage manifests as a short circuit to ground at the input terminal. This issue appears to be related to power supply specifications and potentially incorrect voltage application. Users are also seeking guidance on how to visually distinguish between Jetson series and Xavier series boards.

Possible Causes

1. Incorrect power supply voltage:
   The Orin Nano may have been supplied with a voltage outside its supported range, leading to damage.

2. Misunderstanding of power specifications:
   There seems to be confusion about the supported voltage range for different Jetson models, which could lead to applying incorrect power.

3. Hardware incompatibility:
   The motherboard might not be fully compatible with both Orin NX and Orin Nano, despite appearances.

4. Manufacturing defect:
   There could be a defect in the Orin Nano core board making it more susceptible to damage.

5. Incorrect Module_ID pin configuration:
   The mention of Module_ID pin being pulled up to 5V might indicate a configuration issue leading to damage.

Troubleshooting Steps, Solutions & Fixes

1. Verify power supply specifications:

   • Confirm that the Jetson Orin Nano only supports 5V input. Do not apply higher voltages.
   • For Orin NX, the supported voltage range is 5-20V.

2. Check motherboard compatibility:

   • Ensure that the motherboard is specifically designed to support both Orin NX and Orin Nano.
   • Consult the motherboard documentation for any specific power requirements or jumper settings for different Jetson modules.

3. Inspect Module_ID pin configuration:

   • Verify that the Module_ID pin is correctly configured for the Orin Nano.
   • If possible, compare the configuration with a working Orin NX setup to identify any differences.

4. Visual identification of Jetson series:

   • Look for specific markings or labels on the core board that indicate "Jetson Orin Nano" or "Jetson Orin NX".
   • Check the part number or model number on any stickers present on the board.
   • Compare the board layout and components with official Nvidia documentation or images of known Jetson Orin Nano boards.

5. Power supply testing:

   • Before connecting to the Orin Nano, use a multimeter to verify that the power supply is outputting exactly 5V.
   • Ensure that the power supply can provide sufficient current for the Orin Nano’s requirements.

6. Motherboard power output verification:

   • Test the voltage output from the motherboard to the Jetson module socket using a multimeter.
   • Ensure it matches the required 5V for the Orin Nano.

7. Seek professional assistance:

   • If you’re unsure about any steps or if the board is already damaged, consult with Nvidia support or a qualified technician.
   • They may be able to diagnose the issue more accurately and suggest repairs or replacements.

8. Future prevention:

   • Always double-check power requirements before connecting any new hardware.
   • Keep detailed documentation of your system setup and any changes made.
   • Consider using power protection devices to prevent voltage spikes or surges.

Note: Given the severity of the damage reported, it’s crucial to exercise extreme caution when working with these boards. Incorrect power supply can lead to permanent damage that may not be repairable. Always verify specifications multiple times before applying power to sensitive electronics.