Question Louder coil whine = dying psu?

Jeff_120

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Dec 11, 2016
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My 5.5 years old XFX power supply always had some coil whine but yesterday it was louder than before, is it a sign it's living its last days?
 

Jeff_120

Commendable
Dec 11, 2016
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Is the coil whine TOO loud ? Not sure whether it's indeed a sign of a dying PSU, but power supplies do age with time.
It's a turning humming sound, it's not too loud but louder than before, you can hear it with PC in idle in a normal sound environment (not too silent nor street level)
 

AllanGH

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Mar 10, 2019
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Despite XFX having put-out a high quality 550W unit, power supplies do have a finite lifetime, and that lifetime is shortened by operating the PSU at the upper limits of its load handling capability. I don't know how hard you have run it, but it does sound like it's on the decline.

Singing coils (coil whine) will--eventually--short themselves out, because the noise that you are hearing is a result of actual physical movement of the wires in the coil windings. Constant movement like that will abrade the insulation away and allow adjacent windings to short together. Shorted coils usually result in increased ripple voltage, and that is hard on your motherboard and connected devices.

It is up to you....if it's been ridden hard, then you would want to make replacement a priority. If it has seen mild use, it may be fine...noisy, but fine...but it will fail, eventually. (Not necessarily catastrophically, but it certainly won't be meeting design specs, and that's bad for your hardware.)
 
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Jeff_120

Commendable
Dec 11, 2016
124
4
1,695
2
Despite XFX having put-out a high quality 550W unit, power supplies do have a finite lifetime, and that lifetime is shortened by operating the PSU at the upper limits of its load handling capability. I don't know how hard you have run it, but it does sound like it's on the decline.

Singing coils (coil whine) will--eventually--short themselves out, because the noise that you are hearing is a result of actual physical movement of the wires in the coil windings. Constant movement like that will abrade the insulation away and allow adjacent windings to short together. Shorted coils usually result in increased ripple voltage, and that is hard on your motherboard and connected devices.

It is up to you....if it's been ridden hard, then you would want to make replacement a priority. If it has seen mild use, it may be fine...noisy, but fine...but it will fail, eventually.
I think I will replace it these 2 days, I have also to make power room for a very potential used GTX 1080ti to replace my 1070
 

AllanGH

Commendable
Mar 10, 2019
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We all age with time, do you mean use?
Actually I do....good call. ;)

Of course, letting a PSU sit in inventory for a long time does allow the caps to dry out slightly, but your point is valid and I'll not nit-pick at it....LOL

######## OOPS #########
I thought that was directed at me. (I need new glasses, obviously.)

Sorry MM!
 
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