I have an business class elite dc8300sff destkop workstation that will sporadically power off. I have ensure that the settings in this bios are set to Thermal to prevent overheating. I cannot find any significant event logs to help in diagnosing. This occurred a week and a half ago and resolved after logging in as a different user and forcing it to install windows updates. This occurred again today but returned to normal operation after powering back on.