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High pitch sound.

post #1 of 8
Thread Starter 
Greetings,

I've just recently moved from my old place and now I have a problem at my new place.
Between around 8 am untill 5 pm (even on weekends) all my elektronics - mainly my pc make a high pitch sound. I've narrowed this down to the PSU.
The PSU that I'm using is a corsair 750 TX it's 2 months old (so is the rest of my i7 system) but as I've said it's all elektronics.
Now this high pitch sound can't be heard by older people I can clearly hear it from the other side of the room but the technician couldn't hear it at all. I'm 20 years old so thats should be why.
Moving on there is a construction site next door but 1) my neighbors don't have the same problems as I do 2) the cranes etc were not in use for several weeks while this was happening.
I live in Belgium we have 50 hz - 230V, the technician checked these readings they added up.
My question now has anyone had this happen to them before? Will this do harm to my PSU or any other component? How can I fix this other than to buy an expensive UPS?
Feel free to ask for aditional stuff I will provide them as soon as posible.

Thanks in advance.
post #2 of 8
Thread Starter 
Bump.
post #3 of 8
Quote:
Originally Posted by Erpi View Post
Greetings,

I've just recently moved from my old place and now I have a problem at my new place.
Between around 8 am untill 5 pm (even on weekends) all my elektronics - mainly my pc make a high pitch sound. I've narrowed this down to the PSU.
The PSU that I'm using is a corsair 750 TX it's 2 months old (so is the rest of my i7 system) but as I've said it's all elektronics.
Now this high pitch sound can't be heard by older people I can clearly hear it from the other side of the room but the technician couldn't hear it at all. I'm 20 years old so thats should be why.
Moving on there is a construction site next door but 1) my neighbors don't have the same problems as I do 2) the cranes etc were not in use for several weeks while this was happening.
I live in Belgium we have 50 hz - 230V, the technician checked these readings they added up.
My question now has anyone had this happen to them before? Will this do harm to my PSU or any other component? How can I fix this other than to buy an expensive UPS?
Feel free to ask for aditional stuff I will provide them as soon as posible.

Thanks in advance.
There should be a switch on the back of your PSU, you should switch it from 120v to 240v. That might fix the problem
Naos
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Naos
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post #4 of 8
Quote:
Originally Posted by Force9000 View Post
There should be a switch on the back of your PSU, you should switch it from 120v to 240v. That might fix the problem
NO. That will kill the power supply.

His PSU doesn't even have that switch, anyway, it has APFC.
post #5 of 8
Quote:
Originally Posted by Force9000 View Post
There should be a switch on the back of your PSU, you should switch it from 120v to 240v. That might fix the problem
NOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

Worst advice known to man. This will kill a PSU.
post #6 of 8
It's probably just coil whine, which will do no damage to anything. There is no fix that doesn't void the warranty.
Older people won't hear it as high frequency sound sensitivity declines with age. A UPS will not fix it either.
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post #7 of 8
Thread Starter 
Thanks for the reply.
But issue is like I said it's between certain hours so could it still be something as harmless as coil whine or is it because my sinusoidal voltage is not so sinusoidal anymore because there is atleast 2-3 construction sites I can see near me but none had been used the past weeks...

And as for the 120 -> 240 my PSU would have been dead long ago if that were the case.

But bottomline is I geuss I'm just looking for some reassurance.
post #8 of 8
It is possible that small voltage changes over the course of the day(happens in my area) can cause the coils to vibrate in a range that is audible to you and when it changes by a few volts the coil vibration changes and you can no longer hear it.
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