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PC making high pitched whining sound

Last response: in Components
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January 14, 2014 2:49:45 PM

Hello guys, 4 days ago I had a power outage where the electricity came back in a second and then off again in another second. Then 2 days ago, same thing happened. Now my PC makes a high pitched whining sound. When I shut down the pc, it makes the pitch go in a song like pattern, like it's making a song with the whining where the pitch goes up and down. Does anybody know what component to replace?

I have a
motherboard: Asus H87 plus
PSU: Seasonic 850 watt
GPU: Gigabyte 660
CPU: i5 4570
Case: Haf 922

Any help would be appreciated, thanks!
January 14, 2014 2:52:21 PM

It sounds like possible coil whine from the PSU. Do you have another working PSU you can use to test with?
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January 14, 2014 2:53:57 PM

only 2 components can have coil whine:
1) GPU
2) PSU

from what you described, im leaning towards the psu.
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January 14, 2014 3:11:53 PM

Thanks guys, I'll remove the gpu first to see if that fixes the problem. @shortstuff, no sadly, I don't have another PSU to try.

Also forgot to mention the high pitched sound occurs from start up and just keeps going, I have to turn off the back switch to make it stop
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January 14, 2014 3:16:29 PM

yeah, really sounds like the psu

the gpu tends to only do it under heavy 3d load
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Best solution

January 14, 2014 3:19:35 PM

The PSU probably took a massive voltage spike during one of your power outage/back on cycles. The system is pretty new, so I would start the RMA process for your PSU.
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January 14, 2014 3:28:10 PM

The PSU I've had for around 3 years, since it was fine I carried it over into the new build
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January 14, 2014 3:38:52 PM

@shortstuff, I'm in the process of RMAing it, thanks. I'm curious, why does it seem to make a song as it shuts off? Is something melting?
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January 14, 2014 3:41:00 PM

it is just the wattage demands increasing and decreasing
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January 14, 2014 3:45:57 PM

Whoops, it's the S12D 850. Do I pay for the shipping to RMA?
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January 14, 2014 4:27:39 PM

dtraven said:
Whoops, it's the S12D 850. Do I pay for the shipping to RMA?


Yes, it looks like you have to pay for the shipping for the RMA according to the wording on their website.
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January 15, 2014 3:23:21 PM

Thanks for the help, I'm shipping it tomorrow for RMA
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!