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Solve : Irritating Noise Please Help!?

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Hi, Ive had my computer for 2 years, and like a month after i got it it has been making a really weird noise- and its been doing it since - it sounds like its coming from inside the hard drive. Its a kind of Whirring noise, and i know its NOT the fan because i can hear the fan behind this noise. Any ideas?
System specs are..
Packard Bell Windows XP Media Center Edition
Version 2002
Service Pack 3
AMD Athlon 64 Processor
3400+
2.40GHz, 512 MB of RAM
My graphics card is ATI Radeon 9500.
HELPP!

HDD's spin constantly at high speeds and can cause what is known as harmonic distortion...the SOUND is magnified by the case itself and/or the parts around it.
If you are inclined you could try removing the drive and use some small rubber or cork washers for the hold down screws...this may quiet things a bit.

Just to be on the safe side DLoad and run the FREE diagnostics from the drive manuf. site to make SURE the drive itself is healthy and can be trusted with your data...somebody said it was because i had low RAM. Could this make a whirring noise?When there is low RAM it is the PC NUT that males a whining noise! aha, so if i buy more RAM the noise will calm down?
Quote from: dslgeek on OCTOBER 27, 2008, 11:25:13 PM

When there is low RAM it is the PC NUT that males a whining noise!

Whats a PC NUT?I dont think you would need an extra RAM for this. Just as what Patio said, dload hd diagnostic tools for your hd to be sure that it is trustworthy. And also make sure that it screws in tight to your casing.Ignore the RAM issue and the comments that followed...it's ridiculous.
The noise is from a hardware component.
Follow the hard drive advice first i posted above.

Second thing to check would be each fan...this can be tested by opening a side panel and powering up the machine.
Use a soft implement to stop each fan temporarily to see if the noise abates...if it does you have found the offending fan and it should be replaced immediately.
I use a chicken feather for this but you can use anythin that's not going to break from the force of the fan.
DO NOT stop the fans for very long...remember you are just seeking out where the excessive noise is from.

Most Desktops will have fans on the following:
Case fans 1; 2 or in some cases more.
On top of the CPU on the motherboard.
On the video card.
At the rear of the case.
Inside the power supply unit.

Good LUCK; be careful and pay attention.


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