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Question Power supply making high pitched squealing which I can hear through my headset...

Jun 24, 2020
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Was wondering what this sound is as I've tried to compare my problem with others and mine sounds completely different? Also wondering if I have to replace this unit? Thanks.
System:
PSU: Corsair Hx1000i

CPU - i9 9900k

GPU - Asus Strix 2080 Super

RAM - 32GB DDR4 3200Mhz

MOBO - ASUS ROG STRIX Z390-F


SOUND: https://streamable.com/leqonl
 
Look at what's explained between the bottom two pictures, that is what you are hearing and is fine.
EVGA SuperNOVA 850 T2 Clicky psu and why it is normal.
Paragraph starts with "I’m adding this shot of the unit’s white NTC shorting relay" ...
That not a relay sound. That's coil whine. Relays click. His sounds like a cricket.

Was wondering what this sound is as I've tried to compare my problem with others and mine sounds completely different? Also wondering if I have to replace this unit? Thanks.

SOUND: https://streamable.com/leqonl
It only does it when the PC is under load, right?

When there is magnetic energy stored in an inductor's air-gap, it can vibrate and generate noise. This noise will come from the inductor air-gap materials and magnetic circuit geometry. Depending on the load condition, frequency and the part variations, the amount of audible noise will vary.
 
Jun 24, 2020
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Thanks for the replies.

I should also mention that the video I linked doesn’t do the sound much justice as It’s much louder in person. When I’m browsing websites for example I can barely hear the noise unless I put my ear right against the power supply, if I open a new tab the moment it opens the noise will pick up and disappear in a second, this also happens when fast forwarding video. When I go into a game that gives me high FPS or a demanding game like rust the noise gets much louder and is constant.

Additional question, if someone built the same build as me will they also have this problem or have I just got unlucky?
 

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