Reply to this message
You might also want to look at the logs:
At the Start button search for Event Viewer then expand Windows Logs in the left pane and go to System and look for anything about a shutdown, beware there are many logs, the ones you are looking for are flagged as Critical under the Level field and Kernel-Power under source.
Note: Sometimes the event description is vague, look for the logs leading up to the event, they may indicate a disk failure or some program running unpreempted too long (stuck in a loop) all of which can cause a shutdown.
At least this way you may know what you are chasing, although fan noise going up and down is a good indicator of heat issues in itself it doesn't tell you what caused the overheating.
Return to top level
[an error occurred while processing this directive]
Reply to message