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Hot!If you have Coil Whine, read this.

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enacku
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2014/10/15 17:30:03 (permalink)
Have you ever put your ear to the back of your pc and then listen in on the power supply while running a game or benchmark. I'm hearing coil whine on my pc, but its coming from the PSU not GPU.
 
Anyone ever try that? Run Valley or Heaven Benchmark so it changes scenes and frame rates. 

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    HeavyHemi
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    Re: If you have Coil Whine, read this. 2014/10/15 17:35:11 (permalink)
    enacku
    Have you ever put your ear to the back of your pc and then listen in on the power supply while running a game or benchmark. I'm hearing coil whine on my pc, but its coming from the PSU not GPU.
     
    Anyone ever try that? Run Valley or Heaven Benchmark so it changes scenes and frame rates. 


    Yes, a whine while under load isn't always the GPU. It can be the PSU or a poorly regulated/faulty PSU can cause a GPU to whine under load. A trick is to use a 2 or 3 foot length of aquarium air hose like a stethoscope to isolate the noise. Or in a pinch, a long straw will work.

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    #2
    XrayMan
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    Re: If you have Coil Whine, read this. 2014/10/16 22:07:21 (permalink)
     
    Too many just assume it's the GPU, before really getting up close to the PC.

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    ty_ger07
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    Re: If you have Coil Whine, read this. 2014/10/17 09:03:47 (permalink)
    Filtered Pulse Width Modulation is what regulates the voltage. Your PSU, GPU, and motherboard (providing individual power to the CPU, DRAM, and chipset) all use PWM.

    The "coil whine" will not necessarily be coming from any particular source; it could come from any of those sources. But, the GPU typically is the source of noise because it is low voltage (around 1 volt) at high wattage which equates to higher amperage than the other PWM sources.

    The PSU is obviously pushing out the same combined wattage to the motherboard, GPU, and other hardware. But the PSU is providing power at higher voltage (primarily 5v and 12v) which equates to lower amperage flowing through the PWM voltage regulation filters in the PSU.

    Inductors in the voltage regulator circuitry are coils of wire which are part of the output filtering which vibrate due to pulsating magnetic fields generated as current flows through them. You can hear them vibrate like a speaker if they do at a high enough amplitude.

    Preventing coil whine is ultimately up to the manufacturer when they design the hardware. They can either use higher quality components which are less likely to make audible noise, or add more power phases so that less current is flowing through each specific phase thereby reducing the amplitude of the sound.

    Interestingly, since the PSU is providing PWM regulated and filtered output to every part of your computer, the CPU, DRAM, chipset, and GPU effectively have two layers of PWM voltage regulation to them. A low quality PSU with "noisy" voltage output (poorly filtered), can aggrevate the PWM voltage regulators on the motherboard and GPU. Coil whine on a GPU can sometimes be dramatically reduced by purchasing a better PSU which has more stable voltage output.
    post edited by ty_ger07 - 2014/10/17 09:45:47
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    rsabatino
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    Re: If you have Coil Whine, read this. 2014/10/17 11:01:31 (permalink)
    I don't get any whine at all
    #5
    XrayMan
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    Re: If you have Coil Whine, read this. 2014/10/17 13:50:58 (permalink)
    rsabatino
    I don't get any whine at all




    Most people won't. It just looks like more, because if there's a problem they will post it. If not, you won't see many of those posts.

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    hsharma128
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    Re: If you have Coil Whine, read this. 2015/07/02 05:28:38 (permalink)
    It's because a lotta ppl skimp on the psu
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    pakiefarkas
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    Re: If you have Coil Whine, read this. 2015/07/02 07:51:14 (permalink)
     
    hsharma128
    It's because a lotta ppl skimp on the psu

    ^^^^ this. a lot of the threads people got the cards RMA'd and they still had the issues, replace the PSU with a quality unit and coil whine goes a way.
    #8
    Vlada011
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    Re: If you have Coil Whine, read this. 2015/07/02 07:58:56 (permalink)
    Sometimes is not even PSU or GPU, and other things could whine, CPU area, motherboard.
    But if someone install Graphic card with huge power consumption and start to hear some noise he start to curse graphic card usually.
    I write here two times... two guys both GTX970 and one whine other not.
    But when they change graphics only to try what happen both cards whine in one RIG in other both cards are silent.
    I don't know how many people RMA graphics only because of that completely normal, and when manufacturer replace that to someone who need to RMA graphic people complain why card is not brand new... But what manufacturer to do with normal card with only few days work if someone back them...
     
     

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    hsharma128
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    Re: If you have Coil Whine, read this. 2015/07/02 12:26:49 (permalink)
    pakiefarkas
     
    hsharma128
    It's because a lotta ppl skimp on the psu

    ^^^^ this. a lot of the threads people got the cards RMA'd and they still had the issues, replace the PSU with a quality unit and coil whine goes a way.


    Honestly I dont know why more people dont buy EVGA PSUs...In terms of quality they seem to be par for the course. They dont seem to overcharge on most things, and even though they're known for their GPUs i dont think they produce low quality PSUs by any means. My old 750G2 survived a massive overamperage and is still running strong!. My current psu is the 1300G2 and i paid 150 for it, a massive price difference from the Corsair AX1200.
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    iru_platoon
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    Re: If you have Coil Whine, read this. 2015/10/20 03:21:06 (permalink)
    Vlada011
    Sometimes is not even PSU or GPU, and other things could whine, CPU area, motherboard.
    But if someone install Graphic card with huge power consumption and start to hear some noise he start to curse graphic card usually.
    I write here two times... two guys both GTX970 and one whine other not.
    But when they change graphics only to try what happen both cards whine in one RIG in other both cards are silent.
    I don't know how many people RMA graphics only because of that completely normal, and when manufacturer replace that to someone who need to RMA graphic people complain why card is not brand new... But what manufacturer to do with normal card with only few days work if someone back them...
     
     


    Sorry to reply to an oldish thread but looking for advice on this subject matter, i have recently like less than a month ago purchased a 1000w EVGA Supernova G2 psu, and im getting coilwhine in headphones when running games, i RMA'd my EVGA 980TI and it came back yesterday, i rmad it because of coil whine, and when i did that i decided to replace my psu to rule that out also hence buying the EVGA G2, but once again when fitting my replaced brand new 980ti last night, still coil whine, is it possible ive been unlucky when replacing my corsair psu to the evga one that ive got another psu with coilwhine or is there other possibilities?
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    shawnb03
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    Re: If you have Coil Whine, read this. 2015/10/20 10:44:49 (permalink)
    hsharma128
    It's because a lotta ppl skimp on the psu



    I learned this lesson the very hard way. Years ago, I had just gotten the 8800 GTX (Still have them). That card took a nuclear reactor to power. I thought I had enough power to run the darn thing. I was wrong big time. System booted up just fine, but when the GPU was under a load for more then a few mins the system would system down as in go dead. Restarted system, figured it was a random event, it did it again. Now I know somethings wrong. So now I am in what the heck is wrong and what do I need to fix mode. So I pressed the power button, nothing happened, then I had a BIG Pop. I look behind my computer case just to find the power supply was arcing and flames shooting out of it. I was like ****. Unplugged it. Power supply took everything with it except hard drives and the Video card. It was time for a upgrade anyway. But this time, I didn't skimp out on the power supply and haven't since then.

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    arestavo
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    Re: If you have Coil Whine, read this. 2015/10/20 19:08:24 (permalink)
    iru_platoon
    Sorry to reply to an oldish thread but looking for advice on this subject matter, i have recently like less than a month ago purchased a 1000w EVGA Supernova G2 psu, and im getting coilwhine in headphones when running games, i RMA'd my EVGA 980TI and it came back yesterday, i rmad it because of coil whine, and when i did that i decided to replace my psu to rule that out also hence buying the EVGA G2, but once again when fitting my replaced brand new 980ti last night, still coil whine, is it possible ive been unlucky when replacing my corsair psu to the evga one that ive got another psu with coilwhine or is there other possibilities?




    That sounds like the motherboard doesn't have good insulation for the onboard sound (you are using the onboard sound yes?).
     
    Two things can be done about that that I am aware of - A) buy a new motherboard with better sound component isolation, or B) get a good discreet sound card or good USB sound card. The cheapest of those options would be to get an external USB sound card (I use one myself).
     
    EDIT: clarified that the discreet or USB sound card should be of good quality (cheap ones may be just as bad as onboard sound).
    post edited by arestavo - 2015/10/20 19:21:15

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    yogibear1234
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    Re: If you have Coil Whine, read this. 2015/10/20 19:24:32 (permalink)
    You can't skimp on the PSU.  You also can't listen to the group of people that belong to the 'you-don't-need-that-many-watts' club.  I think they hold competitions for the smallest PSU.  
    #14
    XrayMan
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    Re: If you have Coil Whine, read this. 2015/10/20 20:29:52 (permalink)
    yogibear1234
    You can't skimp on the PSU.   




     +1     Agree 100%

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    Squall_Rinoa86
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    Re: If you have Coil Whine, read this. 2015/10/20 22:55:14 (permalink)
    hsharma128
    It's because a lotta ppl skimp on the psu



    Not true.. I experience coil whine only when folding.

    To boot i'm using 2 970 FTW's and 1300W 1300G2 Evga SuperNOVA PSU.




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    Lothar_ab
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    Re: If you have Coil Whine, read this. 2015/10/21 03:06:35 (permalink)
    I'm receiving Coil Whine only in menu when there is really high framerate.
     
    I'm pretty sure I didn't have that on Seasonic PSU, just after I switch to Evga 1600 P2...
    Thanks god during gaming I don't have it.

     
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    #17
    Shockjockey
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    Re: If you have Coil Whine, read this. 2015/10/21 03:59:30 (permalink)
    Never experienced coil wine myself. I have had a few capacitors squeal under load though..

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    FTWwannabeuser
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    Re: If you have Coil Whine, read this. 2015/10/21 04:35:57 (permalink)
    I don't think coilwhine means that your equipment is faulty; annoying maybe, yes, but not faulty. I have a Corsair AX760 PSU, and I believe this is a top class PSU, and it produces some coilwhine every now and then. I cannot be bothered by it, but it runs very stable for over 4 years now. It runs a 2600K and an MSI GTX570 PE, so not the most heaviest setup. At least, I always thought it was my graphics card because it happens during a loading-a-game menu. Whilst I'm in a game, I don't hear it anymore, but listening closely, it is my PSU.
    #19
    rjohnson11
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    Re: If you have Coil Whine, read this. 2015/10/21 04:45:31 (permalink)
    I can hear a small bit of coil whine but this only occurs when the GPU is saddled with 100 percent load such as folding at home. 

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    d.burnette
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    Re: If you have Coil Whine, read this. 2015/10/21 05:59:53 (permalink)
    I have the GTX 970 FTW ( not the plus) that I got when it first became available. I heard a small amount of coil whine the first few days, but shortly after it just kind of went away and have not heard it since.
    Guess I got lucky in this regard.

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    arestavo
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    Re: If you have Coil Whine, read this. 2015/10/21 11:18:44 (permalink)
    Lothar_ab
    I'm receiving Coil Whine only in menu when there is really high framerate.
     
    I'm pretty sure I didn't have that on Seasonic PSU, just after I switch to Evga 1600 P2...
    Thanks god during gaming I don't have it.


    I have that in certain game screen menus - poop coding on the game developers part. If it only happens there (2 to 4 THOUSAND FPS), then it is just an annoyance (at least for me it is).

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    bcavnaugh
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    Re: If you have Coil Whine, read this. 2015/10/21 19:55:55 (permalink)
    I had two APC UPS Units that have Coil Whine when benchmarking my GPUs.

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    #23
    chrisdglong
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    Re: If you have Coil Whine, read this. 2015/10/21 23:58:52 (permalink)
    Yeah, it happens. 
    #24
    sticks435
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    Re: If you have Coil Whine, read this. 2015/10/22 20:00:07 (permalink)
    I dunno if I'm deaf as hell or if I've always had good PSU's, but I don't think I've ever heard coil whine. I had to look up how it sounded lol. Granted I sit like 3 feet away from my PC and the back of the case is facing me, but even when I sleep and the GPU is facing me I don't notice it, even when folding.
    #25
    catracho4lf
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    Re: If you have Coil Whine, read this. 2015/10/22 20:03:47 (permalink)
    I have noticed it in a few games, crysis and warhead specifically or when I am doing the windows assessment.
    #26
    Bear_drinks_cider
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    Re: If you have Coil Whine, read this. 2015/11/06 16:57:01 (permalink)
    my EVGA 1200W P2 never whines  

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    angeles75
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    Re: If you have Coil Whine, read this. 2015/11/14 15:38:08 (permalink)
    I got a GTX 2gb 960 FTW as an RMA for a faulty 570. It whines when it starts and shutdown, then it stops. MY psu is a coolermaster v1000, it has been in my computer since about 6 months, before I had a 950 coolermaster. Never heard anything from it. I had 2 570's in Sli for 3 years and no noise. Since I couldn't Sli the 570 and the 960, sent 570 back for a 960, hopefully it will be here sometime next week. Will see what happens.
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    post edited by angeles75 - 2015/11/14 15:54:20
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    wanescotting
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    Re: If you have Coil Whine, read this. 2015/11/14 18:19:36 (permalink)
    ty_ger07
    Filtered Pulse Width Modulation is what regulates the voltage. Your PSU, GPU, and motherboard (providing individual power to the CPU, DRAM, and chipset) all use PWM.

    The "coil whine" will not necessarily be coming from any particular source; it could come from any of those sources. But, the GPU typically is the source of noise because it is low voltage (around 1 volt) at high wattage which equates to higher amperage than the other PWM sources.

    The PSU is obviously pushing out the same combined wattage to the motherboard, GPU, and other hardware. But the PSU is providing power at higher voltage (primarily 5v and 12v) which equates to lower amperage flowing through the PWM voltage regulation filters in the PSU.

    Inductors in the voltage regulator circuitry are coils of wire which are part of the output filtering which vibrate due to pulsating magnetic fields generated as current flows through them. You can hear them vibrate like a speaker if they do at a high enough amplitude.

    Preventing coil whine is ultimately up to the manufacturer when they design the hardware. They can either use higher quality components which are less likely to make audible noise, or add more power phases so that less current is flowing through each specific phase thereby reducing the amplitude of the sound.

    Interestingly, since the PSU is providing PWM regulated and filtered output to every part of your computer, the CPU, DRAM, chipset, and GPU effectively have two layers of PWM voltage regulation to them. A low quality PSU with "noisy" voltage output (poorly filtered), can aggrevate the PWM voltage regulators on the motherboard and GPU. Coil whine on a GPU can sometimes be dramatically reduced by purchasing a better PSU which has more stable voltage output.



    :thumbsup:  I can make something in my pc whine IF I run any type of "power virus"
    #29
    givemediscountpl0x
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    Re: If you have Coil Whine, read this. 2015/11/15 10:24:28 (permalink)
    My coil whine comes from my GPU. As soon as I shut down the game I play the noise subsides.
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