Quote Originally Posted by Gizmokid2005 View Post
The Chassis Intrusion Detected is a stupid sensor that some PC cases have on it that if the case is opened the computer will shut off. It is something that you can turn off in most BIOS' options.
I disabled Chassis Intrusion Detected feature in the BIOS. Temperature of the processor seems to me OK (checked by touching the heat sink), cooling fan works OK. Lets see what happen next.