EVGA Supernova G2 750W intermittent electrical sound

[wah007]

Hello,

I have an EVGA supernova g2 750w psu and have noticed that it's making an intermittent electrical sound when the computer is off. I first noticed it about 2 days ago and it was making the sound intermittently for about an hour, after every 5-10 minutes or so. Then it stopped and I didn't hear it again until today. I have managed to make a recording of it on my phone.

Please watch this video. What could be causing this noise?

https://www.youtube.com/watch?v=hH8tC3W5Nck

The PSU is 7 months old.
My system spec:
AMD FX-8350
Gigabyte 970A-UD3P
Hyperx Fury 16GB RAM 2x8GB
MSI GTX 970
Samsung EVO 850


Thanks

 

[stavrosmast]

Its probably faulty RMA it Asap
My g2 850w was doa too...

 

[Darkbreeze]

If the PSU makes noise when the computer is turned off then there is definitely a problem. RMA the unit.

 

[Dark Lord of Tech]

As stated above , this is not normal , I own 4 EVGA power supplies and they shouldn't and won't produce a noise like this when functioning properly.


http://www.evga.com/howtorma/
EVGA RMA Support.

 

[wah007]

Thank you stavrosmast, darkbreeze and SR-71 Blackbird. I will RMA this unit as soon as I can. I'm glad that's it's fully modular so I won't have to mess with the cables, just a straight swap of the PSU only.

 

[Darkbreeze]

Actually, you'd best check with them on that. Some manufacturers like to see the cables returned as well. Others do not. You need to check with EVGA. I think the last EVGA unit I had to RMA, which was some time ago, they wanted the cables as they shipped me an entirely new shrink wrapped unit in return.

 

[wah007]

Actually, you'd best check with them on that. Some manufacturers like to see the cables returned as well. Others do not. You need to check with EVGA. I think the last EVGA unit I had to RMA, which was some time ago, they wanted the cables as they shipped me an entirely new shrink wrapped unit in return.

I bought it from Amazon and they've agreed to send me a replacement. Normally, they send me a replacement first and then I can send the faulty one back, in this case I might just swap the PSU only, but just to be on the safe side I might swap the cables too.

 

[stavrosmast]

I would put the cables back too just to be sure that they will accept it..

So we all had faulty evga psus' huh? :lol:

 

[wah007]

It's strange that the noise only comes for a few minutes then is not heard for days. I've not heard the noise again since last night. Could there be an insect in there that keeps getting electrocuted when it touches a capacitor or something?

P.S I've just noticed that the kettle lead plug wasn't all the way in the socket of the surge protected strip, so I've plugged it into another socket and made sure that it's fully in this time. I'm hoping that this was the problem and that it doesn't happen again. I will find out in a few days for sure.

 

[Darkbreeze]

I would put the cables back too just to be sure that they will accept it..

So we all had faulty evga psus' huh? :lol:

There are NO brands of power supply that I've used or purchased, that didn't have some percentage of failure across all their lines of power supply. It's an electronic device, it will be prone to failure whether from user error, age, abuse or manufacturing defect.


@wah007, likely it's a faulty or "noisy" transformer or something similar. I see HVAC heating units in homes all the time with transformers that are grossly noisy when all else is quiet. It's mostly just annoying but can be a warning of impending failure.