EMC frequency stuck at 204 MHz on Jetson AGX Orin, even under high load

[1737]

Hi everyone,

I’m encountering an issue with the EMC frequency on my Jetson AGX Orin (JetPack 6.2, Ubuntu 22.04). Despite setting the device to maximum performance mode, the EMC frequency remains stuck at 204 MHz, even under sustained high memory usage.

I’ve already set:

• nvpmodel to MAXN:

sudo nvpmodel -m 0

• Applied jetson_clocks:

sudo jetson_clocks

• Monitored the system using tegrastats and Tegra Power GUI

What I observe:

• EMC frequency stays at 204 MHz, even during heavy memory usage
• EMC load goes up to 185%, indicating clear memory bandwidth saturation
• The system is thermally throttling
  
  
  
  
  

Is it expected for the EMC frequency to remain this low under thermal throttling?
Is there any supported way to force or unlock higher EMC frequencies?

Thanks for your support.

[WayneWWW]

This is not thermal throttling. This is OC throttling because you are running stress under MAXN mode.

If you run a proper load then this issue shall not happen. And please do not use MAXN to test. This mode is not a mode that you should test and keep using.