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Noisy Cpu Fan


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7 replies to this topic

#1 alisha_london

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Posted 03 June 2007 - 11:44 AM

I have had my computer about a year. Last summer when it was very hot, it used to overheat and the fan used to come on and make a noisy sound like vacuum cleaner. However, it did not do this except in hot conditions. I t has now started doing it on a regular basis, so loudly I can hardly hear my cd's playing.
I have opened the back, and got the fan out and cleaned all of the dust out of it. This has actually made it worse. It is even more noisy now.
Is it just a matter of replacing the fan ? Or could there be another problem which is causing this ?

thanks , alisha

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#2 Wildabeast

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Posted 03 June 2007 - 12:29 PM

It sounds like maybe you need a new fan, but do you have any case fans? If not, I recomend getting at least 1, possibly 2. The more air movement you have the cooler things will stay and your CPU fan won't have to work as hard. If you don't have any case fans try putting some in and see if that helps, maybe that will keep you from replacing the CPU fan.. :thumbsup:
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#3 Sneakycyber

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Posted 03 June 2007 - 02:18 PM

:thumbsup: To Bc.


Your CPU fan may be turning on more often becuase its getting more use or its because your Heatsink is full of dust. Follow this Tutorial
Also you can look at your computer temperatures and see if your CPU is actually getting hot Using Everest Home edition.
Post your temperature readings and we can take a look at them. Lastly I agree with wildabeast if your fan is making noise its on its way out the door :flowers: Make sure there are no wires comming in contact with the fan blades and if it still makes noise I would reccomend getting a new one soon.

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#4 Ryan 3000

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Posted 03 June 2007 - 05:37 PM

My Dimension 3000 has a very old stock HSF in it. Whenever it gets too hot (like boiling water hot), the CPU fan will speed up as you mentioned. I don't think it's been programmed with a limit on how fast it can go, just a speed respective to how hot the CPU is. Are there any other sources of heat in your case? Video cards, north/southbridges? It may just be that your bearing is wearing down and making more noise, or that the edges of the fan have become ragged.
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#5 alisha_london

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Posted 04 June 2007 - 05:05 AM

hello, thanks for your help. I have downloaded everest and found that the motherboard temeperature i s 32degrees C 90degrees F

does that sound too hot to you ?
I am going to get a new fan anyway and lets see if it fixes it

:thumbsup:

#6 Herk

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Posted 04 June 2007 - 12:50 PM

90 F isn't bad at all, assuming you're getting an accurate reading from Everest.

If you buy a new fan, be careful - some fancier fans require that you remove the motherboard to install a new backing plate because the fan is too heavy. And some of them are so big that they bump into other components and won't fit.

#7 garmanma

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Posted 04 June 2007 - 02:49 PM

If you're replacing the fan AND heatsink, don't forget to get some thermal compound also
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#8 Ryan 3000

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Posted 04 June 2007 - 07:37 PM

Get Arctic Silver Ceramique, it's a foolproof first-timer's thermal compound. A veteran would use Arctic Silver 5 Thermal Compound, but the silver makes it electrically conductive, and over-applications can result in a fried mobo. There is a significantly reduced risk with ceramique, as you can put on all you want without hurting your mobo (but the thinnest layer possible will result in the best CPU-heatsink transfer)
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