Question about Toshiba Satellite A25-S207 Notebook

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I have the A25-S3072 series. Is the CPU Fan (fan I can see from underneath the laptop) suppose to continuously run? It only runs intermitently and when I run my laptop from the portable battery it will cut off after about a 1/2 hour as if someone pulled the plug. However, it will not cut off when funning from a/c power. After trying to troubleshoot I took it to the Geek Squad yesterday and they told me that it was cutting off because the computer was getting too hot off the battery power because the fan was not continuously running and that I needed to replace the CPU fan.

Does this make sense?

Sincerely and Thank you,

Dave Long

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  • DaveLong Dec 29, 2007

    Gentlemen, thankyou for your recommended solutions. I've taken it apart, and cleaned the fan and CPU heatsink. I turned the laptop back on (portable battery power at 100%) and so far it seems to be running fine. It is down to about 26% and has not cut off unexpectedly. I will do this a few more times to test. Also, the fan continues to run only part time, so I assume that it isn't suppose to run all the time, only when needed to cool the computer. Also, I will download and run cpu-z and speedfan. I will let you know how it goes. Thanks for your help.

    Dave Long



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Dave, If you mean that the laptop cuts out because it gets too hot.
Yes, I do agree with them. The fan on a laptop is a VERY important part of a laptop. Because of it the small size the temperature inside gets very high. The fan will run when the temperature reaches a certain degree. If you get it replaced or do it yourself, remove the dust that accumulates inside.

Posted on Dec 29, 2007

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When you say cut off are you meaning that the laptop is shutting down?

The fan is only running intermitently when on battery as the laptop is running in power saving mode 
and the speed drops when not needed as well as the cpu voltage
therefore reducing the heat produced and the nedd for the fan to run.

Try using a program called cpu-z and it will show the speed of the cpu going up and down as needed. Also use speedfan to sjow you the cpu tempreture.

Hope this helps and puts your mind to rest ? :)

Posted on Dec 29, 2007


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