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750W squeal or whining


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No, it's an audible issue and shouldn't effect the performance of the PSU.

But in your case I recommend you have the PSU replaced under RMA.


Thank you


i replaced 3 of them it still dose it i even tryed a differnt brand on PSU and it still make those sounds...........



i guess ill have to live with it


As long it dose no dmg and it wont break fast its all cool

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It should be fine. It is not uncommon for the current design used to make PSU's to make some noise or wine sound but I would not expect it to be so loud you can hear it over the normal fan noise. However, there can also be many causes of this external to the PSU, like a bad ground or some other device in the same breaker that causes some feedback in the coils
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