For the next job today we are at Alfresco Design Associates Limited at Wellesbourne in Warwickshire, We are here because the customers machine has been intermittently rebooting, This appeared to be a thermal issue on the processor as it was reaching 67 degrees C, The computer was fixed by removing dust and carpet hair from the top of the processors heat sink and fan when retested the processor was only reaching 36 degrees C.
As a general rule Intel processors halve the speed of the processor as soon as the temperature goes above 50 degrees Celsius to compensate and try to reduce the heat so if your reading above 50 degrees Celsius check your Processor Fan and make sure its working and not clogged up.