reply to myself:I'm experiencing almost same thing. unexpected shutdown with system stress (by cmdline tool stress) after less than 30 minutes, with official fan installed, and no extra info from "journalctl" or serial console output.
1) a brand new Rpi 5b 8GB
2) the latest Pi OS bookworm
3) updated eeprom
switch to another power supply (official power adapter of pi 4b) and retrying the stress test.
make sure EXT5V_V is always higher than 5.1v even under stress/pressure.
Statistics: Posted by yuningilike — Tue May 07, 2024 12:27 pm