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    I've noticed my PC makes a weird sound whenever I move a window, scroll through a webpage, play games. Basically when anything moves on the screen I get the noise which is a kinda high pitched squeal/buzz.
    Even the animated smilies in the reply window set it off.

    When I run ATITool's artifact scan it gets pretty loud but running something CPU intensive (eg Prime 95 / superPI) doesn't make the sound.

    The sound is definitely coming from the PSU (rather than the GPU), which is an Antec Earthwatts 500w. I've tried recording the sound but my phone can't seem to pick up the sound.
    Also, it's definitely not the fan in the PSU as the noise sounds "electrical" and corresponds exactly with any movements on the screen.

    PC Spec:
    Intel Pentium Dual Core E2160 1.8ghz
    PowerColor HD3850 512mb
    MSI P35 Neo2-fr mobo
    2 HDDs + 1 DVD
    Antec Earthwatts 500w

    Everything is stock and not overclocked so 500w should be more than enough to run everything and has been fine until now.

    Could the PSU be on the way out?
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    What brand is the powersupply and what are the voltage arrangements for it (should be on a sticker on the side)?
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    it's an Antec Earthwatts 500w (EA-500)

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    how old is it - still in warrenty?
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    It's about 1.5 years old and I believe so.
    I've contacted Antec but haven't heard back yet.
 
 
 
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