[SOLVED] HP laptop 450 CPU fan stop working after few second.

[yuganta]

After few second cpu fan stop running. I have clean the dust and pest heat sink also bur problem not solve.

 

[BradtheRad]

Is it possible that it senses your fan drawing overmuch current? So it shuts it off?

As a test, try putting a resistor in the wire which carries power to the fan.

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I frequently hear my laptop's fan revving up.

After some seconds it often goes quiet again. I don't know whether it is running slowly at that time, or whether it is stopped.

 

[James_S]

What about power shortage? Maybe your AC is faulty and it simply does not have enough power?

 

[bodmas]

Hello @yuganta ,
If you succeeded in repairing it then please share the solution.
:smile: