Customer reported SYS-4029GP-TRT2 with Linux OS randomly rebooted without leaving any information about a KP or any errors in /var/logs/
IPMI Eventlog filled with assertions and de-assertions of PSU#2 due to power supply failure.
Asked customer to swap PSU#2 with PSU#1 to check if the issue stays with location or with PSU itself. Customer then found out the issue stays with PSU itself. RMA the PSU to fix.