[hhb]

A fan on my HP Pavilion a1010n computer turns on and off seemingly at random. It may go on for a few seconds, other times it seems to go on forever. It is pretty noisy. I took the cover panel off, trying to see where I can find the problem, but found nothing. Is this some kind of extra fan that shuts on and off to keep some specific part from overheating? Is this a sign of some kind of problem? Is this nothing to worry about? I would appreciate any helpful advice about this issue.

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Does the fan have 3 wires to the electrical connection? If it does it is a sensing fan that is controlled by the motherboard to speed up when temps get to a certain degree. If you dont like the noise you can replace the fan with a quieter type.

http://www.directron...-case-fans.html

http://www.nexfan.com/

SRX660

[SRX660]

Does the fan have 3 wires to the electrical connection? If it does it is a sensing fan that is controlled by the motherboard to speed up when temps get to a certain degree. If you dont like the noise you can replace the fan with a quieter type.

http://www.directron...-case-fans.html

http://www.nexfan.com/

SRX660

[Matthew1986]

Hello, I have an HP Pavilion 1213w, but I don't know if it has the same cooling system, but the fan inside mine does speed up and slow down with the temperature of the comp. At a really low temperature, its virtually impossible to hear this fan, but it can get really loud (as the temperature increases).

Just thought my story may help you figure stuff out.

Edited by Matthew1986, 24 April 2006 - 02:09 PM.

[p-zero]

Its more than likely your CPU fan, depending on your setup. On myrig my cpu fan is inaudible at normal temps but when it reaches 46c it ups the rpm to about 3000 and its noticably louder, and just as you stated sometimes it only kicks on for a few seconds sometimes itll run for as long as Im using a particular application. that should be normal, especially with the outside temps increasing.
-P.