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Old Jul 8th, 2012, 01:48 PM   #1
Wallace
 
 
Join Date: Aug 2003
Posts: 3,142
Saturday my computer started making a new low pitched whine
switched off and took the side off, went and got the snow shovel and cleaned the crap
out that had accumulated
worst was the power ? thingy, lot of wires go into/out of it; All the ventilation holes were
completely blocked by crud
after power washing the inside closed it up and, my isn't it quiet again
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Old Jul 8th, 2012, 02:17 PM   #2
just21
 
 
Join Date: Feb 2002
Posts: 3,538
Www.silentpcreview.com
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Old Jul 8th, 2012, 03:16 PM   #3
Bob111
 
 
Join Date: May 2002
Posts: 7,416
when you do your cleaning-use powerful vac and blow it out. use something like plastic fork to hold blades of the fan(s),while blowing the air on it.. use paint brush. do it outside.
if after cleaning noise is still there-most likely it's a dying fan. could be on CPU,PSU or video card. using same fork-try to stop it for a second,to locate this noisy fan. replace.

http://www.newegg.com/Store/Category...Fans-Heatsinks
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Old Jul 8th, 2012, 03:42 PM   #4
zedDoubleNaught
 
 
Join Date: May 2010
Posts: 325
Any ideas what this one is:
Sometimes in the winter, when it gets cold (probably down to 50 or so, but definitely not freezing) I turn on my desktop computer and within 1-2 seconds it makes a loud whining sound, loud enough I can hear it in another room. To stop it, I turn the computer off then on again and the noise does not come back.
I can't figure out what it is. It only happens when it gets cold; now in summer it never happens.
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Old Jul 8th, 2012, 04:07 PM   #5
Bob111
 
 
Join Date: May 2002
Posts: 7,416
dunno..i'm no expert,but here is my guess(could be funny one for some hardware guru's)-it's could be related to viscosity of whatever is used to lubricate either fans or HD. the lower temp -the higher viscosity.
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Old Jul 8th, 2012, 08:05 PM   #6
Bolimomo
 
 
Join Date: Sep 2008
Location: California, USA
Posts: 2,426
I agree... high pitch noise is usually from cooling fans. And there are a few of them.

A chassis can have 2. One for blowing air in, one for blowing out. Then another one for the CPU heatsink itself. There can be more. Some big video cards have their own fans.

Take off the cover. While the computer is on, use your finger to stop each of the cooling fans and see if the whining noise stops. Then you know which one is the trouble maker. Replace it.

If the noice doesn't come from any of the fans, then the next possibility is the spinner hard drive. If it is, start backing up all your files everyday. Sooner or later it will give way. Replace it when you can.

Lube the fan axles with some WD-40 may help too.
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