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random high pitch sound from brand new PSU

zodius

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#1
Hi guys, i just built myself a new rig few days ago and everything went smooth except 1 thing, the PSU will generate some high pitch sound sometimes and the duration usually not longer than 2 minutes, after that it will back to silent. i have tried to shutdown the window but the sound still remain until i shutdown PSU. is it indicate that my PSU is having defect and need to sent for RMA?
 
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#2
most probably the caps. Nothing much you can do about it. How loud is it?
 
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#3
Whats the psu brand? I had a corsair builder series do this still using it and work good.
 

zodius

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#4
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#5
You have probably answered your own question right there :)
 

zodius

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#6
so it mostly cause by coil whine? is there a way to prevent/minimize it? because its rather annoying when this sound keep on occurs because the rig is just placed beside me.
 
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#7
There is no way to prevent or minimize a whining piece of hardware once your ears are attuned to the sound.

Even with unreasonably loud system fans on 100%, the high pitched sound will cut through.
Best to get it replaced.
 

HammerON

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#8
Best to RMA the PSU now.
 

zodius

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#9
Thanks, i have informed my seller and she agree to replace it for me in 1 week time, hopefully the sound will gone after the replacement.
 

Aquinus

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#11
Sounds like really bad coil whine if yours sounds like that youtube video. It could be caused by electrical resonance along with a (or some) poorly secured inductors. RMA will be your best bet, Seasonic is usually pretty good about this.