PSU coil whine

[dominik.veleta16]

I purchased a new computer and after replace GPU I started to hear the coil whine from my PSU (Seasonic Focus Plus, 550W) so i RMA it and bought the Corsair RM850x model 2018 - 850W and I hear it again. Should i RMA it too? And yes, I'm sure it comes from the PSU.

CPU: AMD RYZEN 7 1700
GPU: MSI GeForce GTX 1060 GAMING X 6GB
RAM: ADATA XPG GAMMIX D10 8GB DDR4 3000
Motherboard: ASUS ROG STRIX B350-F GAMING

 

[Eximo]

Whine only under load or all the time?

If all the time, you might want to find a power supply with a different switching frequency, you might be sensitive in that range.

 

[dominik.veleta16]

Whine only under load or all the time?

If all the time, you might want to find a power supply with a different switching frequency, you might be sensitive in that range.

Only in load

 

[Eximo]

Interesting, both supplies use the same bridge rectifiers and APFC controllers as far as I can tell.

Coil whine is used as a general term for high pitched noises from electronics, but capacitors and other components can also generate noise.

Up to you if you want to try a third PSU or just get the RM850x replaced, but if you are actively searching for it, you are probably going to hear coil whine on everything.

 

[dominik.veleta16]

Interesting, both supplies use the same bridge rectifiers and APFC controllers as far as I can tell.

Coil whine is used as a general term for high pitched noises from electronics, but capacitors and other components can also generate noise.

Up to you if you want to try a third PSU or just get the RM850x replaced, but if you are actively searching for it, you are probably going to hear coil whine on everything.

I want to buy EVGA SuperNOVA 750 G3 is a good idea?

 

[Eximo]

I wouldn't say it is a bad idea. Though it is a tad oversized for your build. Your original 550W is more in the right range.

 

[dominik.veleta16]

I changed PSU and coil whine is gone