HP a6314 cpu fan failed

I have a hp pavillion a6314 which stops automatically - if the machine is started it works during 5 minutes to an hour then fails - when the machine has been executed the second restart will last only seconds with the error CPU fan has failed...  The fan is normally quiet, but when it accelerates upward and in 30 seconds it stops the machine.  The fan looks like it is free of dust/dirt and moves freely.  I presume that the circuit on the motherboard detects something to trigger the stop.  I have looked at the news of the event under the control panel but can't find any error that says heat caused it or another error.  There are critical events in the list, but do not have any problem with the fan.  So I am wary that replacing the fan would do nothing to solve the problem.  What do you think?

Keith

Once the cpu stops, there is a light on the power supply dc.   I guess I was looking for confirmation that it is time for a new computer...  Thanks for your help.

Keith

Tags: HP Desktops

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