PSU making humming / *Wub* sound?

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TheHogDog

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Dec 31, 2014
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So while I was gaming, I heard a oscillating humming / *Wubbing* sound as my GPU increases in temperature.

I am leaning more towards the PSU making that sound more so than the GPU, but it's pretty damn difficult to distinguish from which one it's coming from...

Any ideas?

Edit: PSU is Supernova G2 750 W, sapphire r9 290 gpu

After further inspection, I feel like the sound is actually coming more so from the PSU.

Should I see if I can RMA my PSU?

God damn I hate sound problems when it comes to PC, it's so stressful to find where it's coming from
 
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G2's don't usually do that make sure it's the PSU.
 
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It's way too difficult to distinguish between whether it's the GPU or PSU because they're so close and the GPU needs to be connected in order for me to hear it, or open a game and then it starts to become more audible.

Is it the PSU I don't know, is it because the PSU needs to draw more power which makes it make such noises, I also don't know.

If I put my ear close I can't distinguish between the fan noise and the coil whine of the GPU and then where the oscillating hum noise is coming from.
 
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