I think I my have found my problem.
I assume the my LSI 9300 16i HBA was getting to hot which might have caused the server to crash.... have a fan on the card now.
Does anybody know how to check the temperatur of the card via terminal on HexOS?
I hope this helps me as well... If not, at least now I have a NanoKVM PCIe in my server so i can check, enter bios and restart the server without crawling to it anymore. 😄