I have a high-end dual CPU workstation that has started rebooting itself several times per day. It has no history of doing this - it just started in the last few days. It hasn't had any hardware updates, or even had the case opened recently.
There is no blue screen/STOP error and nothing in the Windows logs to indicate a software/OS error. There is no "your computer recovered from a serious error" message or prompt to start in safe mode.
The only pattern is that the restarts increase in frequency through the day; maybe staying up for a few hours to begin with, then restarting every few minutes at the end of the day.
So I am thinking its some hardware part wearing out, and the increasing frequency leads me to think its temperature related.
So, if I was to start swapping parts out, what should I start with, i.e. the most likely culprit?