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Frequency noise when PC turned off?

post #1 of 3
Thread Starter 
Hello wink.gif

After having my OCZ ZX 850W PSU for a while, I noticed a frequency noise when my PC is turned off. Even if it's been disconnected from power for a day, then plug it in, it still makes that noise. I mean, it doesn't really bother me because I can "fix" it by unplugging the cable, and I can't hear it when the PC is on.
Is there anything wrong with my PSU? For all I know, it can be one of those frequencies only young people can hear tongue.gif I'll ask my dad or something if he can hear it later.
Citra ♥
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Citra ♥
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Big Mac
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[Intel] Core i7 2600K [Asus] P8Z68-V Pro [Gainward] Geforce 9800 GTX+ [Corsair] Vengeance 16GB @ 1600 
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[Kingston] HyperX 120GB SSD [Intel] 520 series 60GB [Corsair] H80 [Canonical] Ubuntu 12.10 
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[BenQ] XL2420T [Corsair] Vengeance K60 Performance [OCZ] ZX 850W [CM] Storm Enforcer 
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[Razer] Mamba 4G 2012 [Beats] urBeats [NZXT] 24/8/6 pin extensions 
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post #2 of 3
I get frequency noises when switching the PC on/off. It is normal. Also on our asus boards, we get frequency noise even if the PC is not on but plugged in/powered if you place your ear near the GPU area.

Hope this puts your mind at rest, everything is ok wink.gif
X79-GCN
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X79-GCN
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post #3 of 3
What you refer to is called coil whine, some people can hear it some people can't. If it's bothering you enough they will likely rma your psu. I can generally hear coil whine louder out of one of my ears than the other, this is due to frequency pickup by my ears being different

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Core
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