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[Corsair AX1200] Is This Noise Normal? -Audio Attached - Page 2

post #11 of 22
I got the exact same issue what did you do? did it go away?
post #12 of 22
my AX1200 makes no noise at all. If it is the PSU then RMA it.
 
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4x r290's
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3x 7970's
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post #13 of 22
Quote:
Originally Posted by Scytus View Post
New developments...I started to notice that the pitch of the noise would change every time I do something. Whether it is loading an application, or even simply scrolling on a webpage.

To put into perspective what I mean, it sounds like the power supply is "working" with each action I take, similar to that of the noise of an HDD trying to keep up/load with your actions..

..is this still coil whine?
Yes it is still classic coil whine. When I had this issue with my old GPU, adjusting the overclock would change the frequency of the whine and it would vary depending on how much gaming/folding I was doing. I know that was a GPU, but I'm pretty sure the same principle applies here.

Hopefully Corsair will take good care of you with your problem.
    
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post #14 of 22
i just got a replacement, and its doing the same thing, im probably gonna jsut get a 1200w from another brand, too bad

syctus ! what did you do?
post #15 of 22
Thread Starter 
Quote:
Originally Posted by mnkeyprince View Post
i just got a replacement, and its doing the same thing, im probably gonna jsut get a 1200w from another brand, too bad

syctus ! what did you do?
Sorry, didn't notice that this thread was still active x]

Well I was able to have Corsair ship me a replacement unit. To my dismay, I had found that the replacement also had the coil whine issue, though it is significant to note that it was not as loud as the previous unit, and did not suffer from altering noise levels as I did different tasks, so I returned the first unit.

Though because it was still a bit audible and it was annoying, I contacted Corsair again to see if this issue could be fixed by shipping another unit. I just received that 3rd unit that they shipped today, and have to say that the new unit also has that distinctive coil whine...

..HOWEVER. As I was cross-referencing the noise differences between the two units, I came across quite a wonderful (and embarrassing) discovery. The second unit that Corsair shipped out to me, the one that I kept and thought still had a slight whine, was almost completely silent. I've found that with these units, at least when you first use them, have a slight coil whine (apart from the very first one I purchased, that seemed a bit above and beyond just normal whine).

So I'm about to return back the 3rd unit they sent me, and keep the one I already had installed. I believe that power supplies may require some breaking in to get rid of the coil? I could be wrong, so feel free to correct me on that. But in my experience in this specific case, that's how it played out.

So I advise you to try it out for a week or two and see if the whine disappears through normal use c:
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Cygnus X-1
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post #16 of 22
agreed! same with me, except i think i just got used to the high pitched sound, if you unplug it and plug it in again than turn on the computer, you will hear it though.

A possible fix: putting non conductive epoxy on the coils to stop them from vibrating, if you look through the exhaust vent, youll see the gray (kinda looks like TIM) epoxy on some of the coils, maybe they missed a coil?
post #17 of 22
actually, yeah, my ears got used to it, i went out of the room awhile, then came back in and stuck my head under the desk, i can hear it
post #18 of 22
If i may hijack this thread, just got a quick question about the fan on this power supply. I got the same coil whine which only happends after i exit the game or anything i do that would put PSU on load. So when i power up my pc the noise isnt there, i run a game and its still silent but as soon as i exit it the noise comes up and it changes the pitch when m scrolling down the webpage or anything that would put the GPU's on load.

Anyways the question i was gunna ask is if the fan should spin for a minute or so when i power down my PC? i had OCZ 1000 modular whose fan was spinning after a power down. This one doesn't, i dont know if the components inside the PSU itself are not hot enough to set it off or is it faulty? My system isnt drawing nowhere near enough power to put this PSU on load so i am thinking maybe it has a fan control built in so when its hot it would spin the fan after i switch it off or it would not depending of the load its has been under. or is it maybe just deffective?
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post #19 of 22
lol the noises we have isnt the fan, its the inductive coil that vibrates, producing a high pitched whine

your fan problem might be dangerous, if it dosnt cool the PSU under load
post #20 of 22
Thread Starter 
Quote:
Originally Posted by MilosKralj View Post
If i may hijack this thread, just got a quick question about the fan on this power supply. I got the same coil whine which only happends after i exit the game or anything i do that would put PSU on load. So when i power up my pc the noise isnt there, i run a game and its still silent but as soon as i exit it the noise comes up and it changes the pitch when m scrolling down the webpage or anything that would put the GPU's on load.

Anyways the question i was gunna ask is if the fan should spin for a minute or so when i power down my PC? i had OCZ 1000 modular whose fan was spinning after a power down. This one doesn't, i dont know if the components inside the PSU itself are not hot enough to set it off or is it faulty? My system isnt drawing nowhere near enough power to put this PSU on load so i am thinking maybe it has a fan control built in so when its hot it would spin the fan after i switch it off or it would not depending of the load its has been under. or is it maybe just deffective?
That's the issue I had with my first one, I believed it was quite a serious issue, and has not been apparent on any of the PSU's I received as a replacement, so I would definitely RMA it.

In regards to the fan, I don't think it's an issue, this power supply stays quite cool I'd imagine and mine doesn't keep spinning after power down either.
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Cygnus X-1
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