Definitely not normal. My psu doesn't make any buzzing noises.

Kyuunex
I bought a 500W one, 100-W1-0500-KR to be exact. The first time I turned it on, I heard a buzzing coming from the PSU. And it went away after a minute. Then it occasionally comes back and goes, totally random, putting load on my computer doesn't affect this behavior. The thing is before this I had a 430W 100-W1-0430-KR one and It didn't made any noise.

Any ideas? should I be worried that I might have gotten a defective unit? here's a recording of this buzzing.

edit: can't put link so... here's the link to a video with buzzing on youtube /watch?v=QIkhn9kVJnw
 
https://www.youtube.com/watch?v=QIkhn9kVJnw

If that power supply is powering a gaming rig, i would recommend buying 600-650w 80 Plus Gold rated power supply. 80 Plus White (power supply you have now) rated power supplies are made using cheapest parts and have the lowest rating for power efficiency.
 
Power supplies are the heart of the system, if it supplies noisy power signal, it can damage hardware over time.
 
EVGA SuperNOVA 650 G3, 220-G3-0650-Y1, 80+ GOLD, 650W Fully Modular ($79.99 after $10 rebate card) 
https://www.newegg.com/Product/Product.aspx?Item=N82E16817438094
 
EVGA SuperNOVA 650 G1 120-G1-0650-XR 80+ GOLD 650W Fully Modular ($69.99 after $10 rebate card)
https://www.newegg.com/Pr...x?Item=N82E16817438026
 
If that's too high, keep checking newegg or other sites for a better deal on 80 Plus gold rated 600-650W.
 
 
 

Kyuunex

XrayMan
If it doesn't sound right, then contact Evga. Possible RMA might be in order.

I Imported this from the US (I'm not in US), and paid lots in shipping so, RMA is not possible. Any other way to deal with this?
 

MSim
If that power supply is powering a gaming rig, i would recommend buying 600-650w 80 Plus Gold rated power supply. 80 Plus White (power supply you have now) rated power supplies are made using cheapest parts and have the lowest rating for power efficiency.
 
Power supplies are the heart of the system, if it supplies noisy power signal, it can damage hardware over time.
 
EVGA SuperNOVA 650 G3, 220-G3-0650-Y1, 80+ GOLD, 650W Fully Modular ($79.99 after $10 rebate card) 
 
 
EVGA SuperNOVA 650 G1 120-G1-0650-XR 80+ GOLD 650W Fully Modular ($69.99 after $10 rebate card)
 
 
If that's too high, keep checking newegg or other sites for a better deal on 80 Plus gold rated 600-650W.

I'm pretty sure I don't need an overkill psu for a system with Intel Pentium G4560 (kaby lake Pentium that doesn't need much power), a gtx 960 and ssd only system (no hdd).
The thing is, it was 100% fine with the 430W I had, absolutely no problems. I just needed a new psu for a different system and I bought this 500W since it was almost the same price as 430W on amazon. I put the old 430w in a different less demanding system and I put 500W in my main one.

650W psus are out of my reach, they are too expensive for my budget system.
 

In what country do you reside?

The closest RMA is in Europe

EyeDeeNo
Hello Kyuunex,
 
If it was me I would not worry much at all and just keep an eye and ear on the system occasionally during use for a month or so for any worsening of the noise.
 
I have a brand new Lenovo and the power supply in it makes a similar noise continuously even when the computer is off and I have no worries. I can only hear this noise if my head is about fifteen centimeters next to my system.
 
A few things can cause this noise such as magnetic fields interacting with metal parts or the flow of electrons through capacitors and the latter is more likely.

Thanks for reply :)

Wow! And with no indication of a worsting problem? And you tried to workbench start it by jumping the green wire.
 
Well, at this point you need to reach out and get in touch with EVGA support to open a support ticket. 

UPDATE:
So, green wire method still doesn't work.
My GA-H110M-A Motherboard cannot start this PSU.

I tried testing this psu on a very old P4B533-X motherboard and it powers on. WHAT THE....


I'm confused.
 
If I had PSU schematics, and schematics of this old motherboard I would probably figure it out how it works. 

EyeDeeNo
Give it shot and talk to them anyway and add what you just told me and see where it goes.
That is very much an irritating inconvenience you have to go through when receiving something abroad.

OK, I opened a support ticket, waiting for their reply.

EyeDeeNo
You registered the power supply?

Yes. Oh and I also received their answer. They are asking for RMA, For me to send it back.

EyeDeeNo
At lest you tried. Sometimes you win, sometimes you lose. Look at it this way you would have spare parts if you decide to get the same model or another EVGA product at that matter. Keep the faith though. Unforeseen stuff happens.. but your geographical location from where EVGA conducts it's business compounds the situation. As you probably already know. 
 

Thanks you for your reply. I feel great, knowing I have a spare and silent 120mm fan I can add to my case for better airflow. Jokes aside, I was actually thinking of finding a way to jumpstart this psu. This old Asus P4B533-X motherboard I had laying around with an aincent PC was able to start it, and it's running fine as we speak.

Meaning, some components in PSU might be fine, it just doesn't jumpstart normally. I have to find out how this old mobo is able to do it.

Sajin
Better watch out. The PSU might be killing your motherboards.

Thanks for warning. Luckily I still had a 430W 100-W1-0430-KR psu, used on another machine, and I used that to power my main rig again. the motherboard works fine on it.

As for the 500W that "died" after playing around with it, I figured out that i can still jumpstart it but shorting the green wire repeatedly few times and on one of the shorts, it could start.

Kyuunex
ok, so my 430w started buzzing now, sometimes. I have a bad feeling about this.

Try another power outlet in your home not on the same circuit and see if the buzzing continues. 

Yes I am curious so let us know as soon as possible. 

While I'm testing things out here's a small update.
 
first let's talk about the old 500W psu that died: After testing it I discovered that, If I connect multi-meter to the 12V rail and short the green wire, it goes up to 9 volts and slowly starts coming down, if I unshort and then short green wire to the ground, it goes up to 10v and so on and if I unshort and short few times (like spamming it), it reaches 12v and then the psu turns on. After measuring all the rails, I noticed 3.3v rail was showing 3.67v. 
 
Now let's talk about my 430W. Yesterday I heard it buzzing, first time, twice, with a cooldown time in between. So I grabbed 2 long power strips and I'm currently powering on that pc from power from other side of the house.

It's not actually a house btw, more like an apartment building which was built during 1960-80 period, unless previous owners have replaced these, these breakers might be 50 years old. or at least 20 years if they have replaced it. 

The load is very unbalanced. I mean super unbalanced. the first one is breaker A i refer to, the other ones are wired in a strange way that if there is a load on other side of the house both of other two pop out. and the power isn't back until I pop in both.

In last 4 months, the breaker cut the power probably around 10-20 times because of high load and most of the time my pc was running. could an psu die due to frequent power loss? I doubt it. maybe the breaker isn't holding up.


I guess cheap power supplies are just cheap, not made to withstand unstable power? (here's a small story, my online friend had a tier 1 psu, moved to africa, connected the psu to unstable power, killed his psu and motherbaord, at least I'm not that unlucky)
 
looking these breakers up, they are made in Poland, only Polish results come up. they are rated for 250V at 10A which is very very little, specially since 95% of total load in this house is on that breaker, while the rest are on the other two. The other one on the bottom is a new breaker though, power going through there before anywhere else, breaking the whole house if switched off.

I'll post an update regarding the buzzing in few days, I haven't used the pc much since I connected it to other side of the apartment.

i'm just done