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What a nuisance, nvidia issued a new JetPack5.0.1. When flashing the machine, after flashing the operating system, there is no problem, the fan is fine, and then after the messy software is installed, the fan keeps running at full duty cycle, which is so noisy, Buddha. After finishing the big onnx, let's do the fan thing next.
reference
nvidia forum
nvidia fan official website information
process
It's very simple, just a few commands to solve the big fan problem
sudo systemctl stop nvfancontrol.service
sudo rm /var/lib/nvfancontrol/status
sudo systemctl start nvfancontrol
It’s probably ok. The fan should stop immediately. If it doesn’t stop and restart it, I don’t understand.