Question PSU noise question

Mar 21, 2021
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So I have been noticing my PSU has been making a sort of rattling noise. I have a powerspec 500 watt PSU and I noticed that it has been making this kind of rattling noise just randomly. I attached a recording of the noise that it makes. It doesn't seem to have specific correlation to when my pc is under stress. It sometimes starts making the noise as soon as my pc turns on and sometimes I don't notice a thing. Is this a normal expected noise? Would I be able to get it fixed? Would it count under my 5 year warranty? Any advice appreciated!

Other Specs:
Ryzen 5 3600
Asrock B450M Pro4
MSI GTX 970
 
Mar 21, 2021
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You said "rattling", which would make me think fan. But in the video, I hear static. Is it a static noise you're hearing?
I guess it kind of is static. It just is a lot deeper than static I normally hear and feels less consistent but I guess it counts as static yeah.
 
Mar 21, 2021
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When I first heard the noise I thought it was my Hard drive because it is similar to the sound the drive makes when it is waking itself back up.
 
Dirty mains? Can you try your PC on a completely different circuit?

I have seen (heard) anything from air compressors to EV chargers introduce electrical noise into the mains that manifests itself as audible noise in the PSU's safety caps.
 

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