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2013 Corsair AX1200i - Suddenly started buzzing quite loudly under load?

post #1 of 10
Thread Starter 
Hi Guys!

So about a week ago my 2013 power supply started acting a bit strange...
It's been dead quiet since I got it, serving me very well through 3 builds (SLI 780's, SLI 980 Classifieds and SLI Titan X's).

That is until a couple of days ago, where it suddenly started buzzing quite heavilly under load. I would normally not even think of mentioning it, and just write it off as a sudden case of coil whine, but it sounds a lot more agressive than any coil whine I've ever heard (and believe me, both the 780's and the Titan X's were screamers when I first got them). The only time I've heard something similar was a few years ago when my brother in law managed to mess up the wiring for the lighting after they moved into their new apartment. It made a very similar buzzing sound for about 5 minutes, then blew every lamp on the circuit and they had to rewire the entire thing. Needless to say, hearing that same sound come from my PC is kinda freaking me out. As far as I can tell it only happens under load, much like you would expect from coil whine, though there is a gentle buzz as well when the system is idle. To be entirely honest though, chances are that's entirely normal and I just notice it now because it's the first time I really pay attention to it.

I feel like it needs to be mentioned that it's not just the buzzing that is suddenly occurring, but it also seems to feed into the rest of the system, causing an electric static/buzzing sound that sounds a bit like coil whine in my headphones, which are connected to the front audio jack of my case, which is of course plugged into my motherboard.

Long story short, I'm pretty damn alarmed at this point in time. What do you guys reckon?
I guess the time has come to buy myself a new power supply?

I'll see if I can get an audio recording of it soon.

EDIT: I found the courage to boot my rig back up, and managed to record it here. This is with the side panel still on, about 30cm from the power supply.
Edited by Leyaena - 2/6/16 at 1:48pm
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post #2 of 10
Why waste money on a new PSU if you can just RMA it?
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post #3 of 10
Thread Starter 
Well, since 2013 we've actually moved house, and after doing some digging I realised I can't find either the box nor the invoice mad.gif
Of course now I wish I'd have hung onto it a bit more tightly, but I'm affraid I'll have to pay the idiot tax on this one...
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post #4 of 10
Why not send an email to Corsair explaining situation before you rush out and buy a new PSU?
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post #5 of 10
I sent a psu n didnt have the box yo send it in.
As for the invoice do you remember where you brought it. If it was online there maybe summet on their website
post #6 of 10
Thread Starter 
That's actually a very reasonable idea, every interaction I've had with their customer service has actually been very pleasant.
Without an invoice or a product box I'm not exactly loving my chances, but it's definitely worth a shot.

Aside from that, what do you think? Could this just be coil whine popping up? Or is it definitely time to say farewell to this PSU?
I'm pretty damn scared of it giving up and taking the rest of my system with it, but I've heard some pretty crazy coil whine before as well...
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post #7 of 10
Your PSU still has a serial number on it which means you have proof that you own it.
They might even be able to trace where that serial number went.

Send them an email the worst thing that can happen is they said sory we cant help but at least you tried.
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post #8 of 10
You don't need box nor invoice, also to note these have 7 year warranty and came out in sometime in 2012 so rma is possible either way
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post #9 of 10
Thread Starter 
Okay, I'll definitely send them an email to check, then!

Do you guys recon it's worth the risk to use the system in the mean time? I kinda need it for work on monday, at the very latest...
On a scale from 1 to 10, where 1 is 'You should probably get that looked at, man.' and 10 is 'TICKING TIME BOMB! DIVE FOR COVER!', how bad does it look/sound?
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post #10 of 10
Thread Starter 
Just a quick update:

I managed to borrow a friend's HX1200i he had sitting around in a build he wasn't using. This allowed me to verify the buzzing (as well as the buzzing bleeding over into the audio channels) were new issues that were specific to my AX1200i unit. I will be contacting Corsair today to see what can be done about returning the unit.

In other news, while testing I noticed Furmark draws a LOT of power compared to pretty much any other application. I decided to run Furmark when I got my friend's HX1200i in just to do some testing, and I was shocked to see my PC promptly cut power and shut off. Thinking something was wrong, I plugged in the usb-header and installed Corsair Link to try and see what was wrong. Here's some screenshots from that testing:





Note how I had to scale back my overclock during Furmark to prevent drawing more than 1200W of power, causing the system to instantly shut down.
I was a little surprised by this, and thought it was worth sharing.
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