My computer is making the a very high pitched noise...

[maxoknh]

My computer makes a very annoying high pitched noise when i run games. It sounds like its coming from my graphics card and its almost pulsing noise. I could very well be wrong. (the reason of the category Other Components)
Here is my PC setup:
PSU: AZZA Alpha 700 watt power supply (my computer uses about 350 watts)
CPU: AMD FX 4100 3.6 Ghz OC'd to 4Ghz
GPU: AMD Radeon HD 6670
RAM: 4GB 3333Ghz GDDR3
HDD: 500GB 7500RPM
Any way you peeps can figure out where the noise is coming from and how to stop it?

 

[$hawn]

Open up your case and inspect all the fans, one of them is crapping out, or has a wire rubbing against the fan blades.

 

[smorizio]

coil whine??
http://www.youtube.com/watch?v=8mMm26F6t3I
http://www.youtube.com/watch?v=C4d23F2jehQ

 

[maxoknh]

Well its not one of my fans... i used the overclocking to turn each one off but nothing changed. (ofcourse i didnt leave them off, that would be stupid ) But both those sounds sound like mine... I think it is the power supply though, thanks! Is there anyway to make it go away though? its driving me nuts!

 

[smorizio]

replace the power supply with a better unit..