Linux Sysadmin – Debug Random Shutdowns on BRIX Hardware

We have 13 BRIX mini-PC machines running Debian 12 that are experiencing random, unexplained shutdowns across multiple geographic locations. The remaining 47 servers in our fleet (different hardware) run without any issues... (Budget: $2 - $8 USD, Jobs: Ansible, Bash, Bash Scripting, Debian, DevOps, Linux, Network Administration, Ubuntu)