Solved: Strange sound coming from CPU?

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Avishek

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Jan 12, 2011
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When I just press the start button in CPU and when it starts sometimes a sound comes from it..previously also a sound used to come.... the sound of fan but recently its making loud sound... all the other things are fine. i can use my PC normally but the sound is worrying me.... . most probably its the sound of the fan.... but why does it make so loud sound sometimes?? its not that it always happens but when it does it makes me afraid... please help
 

Avishek

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Jan 12, 2011
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i actually get so afraid that i turn off my PC within 2 or 3 minutes
 

Avishek

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Jan 12, 2011
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yups its desktop.... n its just like spinning fan with buzzing sound
 
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Apr 5, 2008
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Could be a wire across a fan...best thing is to take the side off the tower and see if you can pinpoint where it is coming from
 
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A good cleaning with a compressed air can wouldn’t hurt anything either. May have a lot of excess dirt and dust accumulated around the fans. If the sounds persists I would indeed try to pin point where the sound is coming from. Place some a small amount of pressure with you fingers on each of the fan frames and see if some pressure will quite the noise. Also should be able to feel some vibration if the fan is grinding down bearings or hung on something.


 

Avishek

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Jan 12, 2011
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I just pressed the wall of CPU with my hand and i feel the sound is decreasing.... and i can also feel the vibration...

if its the fan problem then i can clean it up
but if its something else :( :(
 
Joined
Nov 24, 2007
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The CPU has no mechanical moving parts that could cause vibration mate its most likley a dodgy fan :) could also check to see if the motherboard is secure i had a noise problem once it turned out to be the fans causing my motherboard to vibrate on the motherboard mounts.
 

Avishek

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Jan 12, 2011
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what i do is when i heard the noise, i shut down my PC and restart but then the sounds goes away
i have 1 question.. if its the fan then why isnt it happening everytime?
 
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did u open the side of the case and determine where the noise is coming from????????
 
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Nov 24, 2007
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Sometimes fans need to warm up to start making strange noises or they can do the same when starting the system from being turned off ...it could even be a noisy harddrive just a thought :)
 

Avishek

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Jan 12, 2011
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13
does it do any harm if i force computer to shut down by pressing n holding button in CPU?
 
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