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Internal temp is *really* hot - fan Broken?


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#1 chrisshorb

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Posted 24 August 2010 - 11:53 PM

I'm using SpeedFan to check my temperatures.

I notice dust etc in one of the vents, so I'm thinking of opening up my laptop (Dell Inspiron 640m) and blowing all that cr@p out of there.

How can I tell if I need a new fan besides just the temperature? Dell doesn't seem to sell fans individually, how do I know what kind I need to buy?

Thanks,

chris

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#2 dc3

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Posted 25 August 2010 - 12:09 AM

If the fan is running, you don't need to buy a new one, unless the RPMs a below normal parameters.

I would suggest purchasing a can of "canned air" and blow out the vent/s on the bottom of the laptop. This usually has a positive affect.

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#3 chrisshorb

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Posted 25 August 2010 - 02:11 AM

Thanks. Just a note, if you own a Dell Inspiron 640M, you will have to pretty much take apart the entire laptop to get to the fan casing. Stupid design, but I guess it all works.

I took out the Microprocessor Thermal-Cooling Assembly and that was just covered with dust. Cleaned that out.

Removed the fan, and blew out the vent on the bottom so the crud went out of my laptop, instead of into it.

One problem I did have was my palm rest, as I was removing it, I broke these plastic posts that held the actual bolts that the nuts screwed into. That was a real pain, and there should have been a warning. I got most of the screws back in except one, hope that doesn't totally screw up my computer, but I am *NOT* going back in there to get that f#*%#er out again unless I have to, or you kind folks on this board command me to.

Thanks,

chris




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