We use [https://github.com/geekworm-com/rpi-cpu-stress rpi cpu stress] to stress test the Raspberry Pi 4 2GB version, the OS is 2021-05-07-raspios-buster-armhf.img, and the charger used is type-c Huawei 65W fast charger, program running time exceeds 30 minutes.
Or download the test script from [[File:Rpi-cpu-stress.zip|none|here]], then unzip the zip file;
'''How to test?'''