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PC Fan


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#1 rufusanne

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Posted 09 January 2011 - 05:11 PM

I have a Dell Dimension 4700 that the fan started running loudly just today. The fan thats running loud appears to be the power source fan.

I've read where it may need to be cleaned, but I have NO idea how to get into it. I did get to the processor fan and it was quite dusty and I cleaned it, but that didnt help.

Also, is this a problem that I need not to use this pc until I find out what the problem is and correct it? ie, is my pc potentially going to "burn" up if I continue to use with the fan running so loud/hard?

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#2 Chris_Pool

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Posted 10 January 2011 - 01:56 AM

You'll probably need to take it out and clean it with compressed air.

There should be four screws on the back of the computer where you plug in the power. This is the PSU. Turn off and unplug the computer then press the power button to discharge any leftover power, unscrew the four screws around the power port. You don't need to disconnect the connected devices at the other end, just take the psu out enough so you can see the fan.

When you clean with compressed air, don't hold the bottle sideways or upside down or else the chemicals won't mix and it will come out as a liquid which would be bad.


If the problem persists, new PSU's are only $20 or so on newegg.



>is my pc potentially going to "burn" up if I continue to use with the fan running so loud/hard?

Your computer will turn off automatically if it gets too hot. That won't happen unless the fan totally dies.

#3 Sneakycyber

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Posted 12 January 2011 - 08:47 PM

You can also use Q-tips and rubbing alcohol for stubborn dust. If the fan is making a noise loud enough to be noticeable then likely the bearings or bushing is failing in it and it needs to be replaced.

Chad Mockensturm 

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