1. Try using a different SSD to determine if there is a compatibility issue.
2. If it is an external hard drive, then it is advisable to add a power supply.
https://forum.alliwava.com/threads/how-to-reinstall-update-the-projector-os-via-allwiner_factoresst.38/
It is recommended to update the firmware, please see the forum link.
Very simple way to do it.
Start your PC in safe mode in Windows
https://support.microsoft.com/en-us/windows/start-your-pc-in-safe-mode-in-windows-92c27cff-db89-8644-1ce4-b3e5e56fe234
If it's a random automatic restart, it may be a restart after Windows 11 automatic update, you can check the status of Windows updates, or you can turn off automatic updates.
Or use a tool to check. such as app ' AIDI64 '
The speed of the fan changes with the temperature.
How long have you been using your computer? It is recommended to open the bottom cover and clean the dust from the fan.