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Weird Buzzing Noise And Light Dim Only After Waking From Sleep

Last response: in Components
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May 2, 2013 8:03:21 PM

I am not sure what component is causing this, my lamp on my desk gets dimmer for a second and buzzes with my computer only when it wakes from sleep mode. I am worried, I am not sure if my components are being damaged every time a wake it from sleep I need help!

My Specs:
Intel i5-3570
EVGA GTX 650
AsRock Z75 Pro
Corsair CX500M

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May 2, 2013 8:12:19 PM

That is NOT a problem with your computer. It's a problem with the wiring in your house. If you rent, tell your landlord. I'd wager that your building must be pretty old. Try making sure your rig is the only thing on its circuit.
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May 2, 2013 8:17:07 PM

BadPeteNo said:
That is NOT a problem with your computer. It's a problem with the wiring in your house. If you rent, tell your landlord. I'd wager that your building must be pretty old. Try making sure your rig is the only thing on its circuit.


Here is where it is very strange, I just got my electrician to install a new dedicated line into my room, he came by today to check on it and says that the line is fine... The line is a 20 Amp line. Now why does my computer only do this when out of sleep mode? It does NOT do the same thing when I turn it on from shutting it down :( 
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May 2, 2013 8:42:31 PM

Is it an Arc fault breaker? My crappy electrician just replaced one of those that he SWORE would be awesome.

Why does it only do it then? Who knows? Perhaps something about the particular requirements of that act are sending feedback down the line that your crappy wiring doesn't like.

Bottom line:
If your rig is affecting things that it's not connected to, it's the house, not the rig.
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May 2, 2013 11:13:40 PM

My guess would be the rather undersized capacitor they use in the active PFC circuit in the CX500M.

That PSU also has an inrush current of around 19 to 20 Amps.

@BadPeteNo asked you if that new circuit is using an Arc Fault Circuit Interrupter circuit breaker. That type of circuit breaker is required by North American building code for outlets installed in bedrooms. There can be some weird interaction from the PSU's large inrush current and the circuit breaker.

Others have reported such behavior but the that behavior disappears when the PC is plugged into a circuit using a standard circuit breaker.
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May 3, 2013 7:11:14 PM

I hate my arc faults. Pulled them out myself. ***shhhhh.... don't tell my landlord, I'll put it back before I move***
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May 3, 2013 9:47:39 PM

I found the problem! A fuse was loose in my Sub-Panel causing the surges.
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May 3, 2013 10:05:17 PM

Like I said, if the effects go beyond the computer, it's not the computer.
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