Reduce orin nano idle power

I have a orin nano dev kit board(8G), just flash the default Jetpack 5.1.1. When power on the system(utuntu 20.04 desktop), I can see the idle power data is below.

SOC 1.5W

The CPU and GPU only take about 360mW, SOC is 1.5W. Why does VDD_IN take so much power 4.7W? Is there any ways for me to reduce the idle power?

  1. RAM consumes much power.
  2. The module’s step-down voltage converters are less efficient at low power. Peak efficiency is at about 80% load.
  3. Jetson is not specifically designed for super low power. If the idle power is a problem you may need to implement power-on/power-off mechanisms on your custom baseboard.

For Orin Nano, we have the 7W mode:
Jetson Orin Nano Series, Jetson Orin NX Series and Jetson AGX Orin Series — Jetson Linux Developer Guide documentation

We would suggest have at least 7W for the system.

If some HW modules like ethernet/SPI/UART etc wont be used, can I turn off them to save the power for them?

On Orin Nano you won’t notice the difference for SPI/I2C/UART. You can’t turn off the Ethernet PHY chip.

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.