Question Question about a new PC and coil whine

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Mac34

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Dec 4, 2012
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Hi,

I just built myself a new gaming PC, but got the "dreaded" coil whine issue. It's not during gaming, just regular stuff in the desktop

The computer consists of these parts:
Asus Rog z590-E
Samsung EVO 980 Pro
Corsair 32 gb ram 3400mhz
Corsair RM1000i PSU
MSI RTX 3090 Suprim
Intel 19600K (waiting for the 11990k)

It kinda sounds like a scratchy buzzy sound of a buggy fan or fan blades softly hitting a wire. When opening windows, or loading programs, the buzzing sound becomes louder for a few seconds. When the computer is more or less idle, then there is less noise.

I used to have a Z490-f motherboard, and had a similar issue before I updated from a bad bios. Then disabling C-States for the CPU removed the noise. This didn't work this time, and there is no new bios available. The sound seems like it comes from the PSU, but it's hard to tell for sure.

Any tips or help would be greatly appreciated. I know this is vague, but in case someone else here has had a similar issue, and figured it out.

Thanks!

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