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  #1  
Old 11-23-2018, 11:52 PM
domdomdom domdomdom is offline
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Default Any way of fixing Corsair One fan pump noise

Hi has anyone worked out how to fix the Corsair One fan pump noise. I had a system that was quiet, but it kept crashing so after an RMA request I sent it in for a replacement. Unfortunately my return unit had the same pump noise as these posts.

http://forum.corsair.com/v3/showthread.php?t=175214
http://forum.corsair.com/v3/showthread.php?t=175202
http://forum.corsair.com/v3/showthread.php?t=171545

After another RMA, I got a third unit which was also noisy so I sent it back. This last replacement took over a month to get to me which was really frustrating and I don't really want to go though the same arduous process again, only to get another noisy unit. It is so frustrating after my first unit was a quiet one.

So I'm looking at fixing it myself, does anyone know what the source of the problem is and how to fix it? If not I'm just going to sell the darn thing.

Thanks, and sorry for moaning.
Dom
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  #2  
Old 11-26-2018, 02:43 PM
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Corsair StormShadow Corsair StormShadow is offline
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Quote:
Originally Posted by domdomdom View Post
Hi has anyone worked out how to fix the Corsair One fan pump noise. I had a system that was quiet, but it kept crashing so after an RMA request I sent it in for a replacement. Unfortunately my return unit had the same pump noise as these posts.

http://forum.corsair.com/v3/showthread.php?t=175214
http://forum.corsair.com/v3/showthread.php?t=175202
http://forum.corsair.com/v3/showthread.php?t=171545

After another RMA, I got a third unit which was also noisy so I sent it back. This last replacement took over a month to get to me which was really frustrating and I don't really want to go though the same arduous process again, only to get another noisy unit. It is so frustrating after my first unit was a quiet one.

So I'm looking at fixing it myself, does anyone know what the source of the problem is and how to fix it? If not I'm just going to sell the darn thing.

Thanks, and sorry for moaning.
Dom
What's the part number and SN on your unit? Are you hearing this noise constantly or only during load?
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  #3  
Old 11-26-2018, 08:50 PM
domdomdom domdomdom is offline
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Hey StormShadow,

The serial number is: 0006182306817
I'm not sure what the part number is, but this is on the bottom of the case above the serial number: CS-9000011
There is also this above the barcode: RCS0003

And from the corsair one diagnostics I got these
Product: Corsair One
BIOS Version String: 4.C1

Yeah I'm hearing the noise constantly. It is a tone like a high D on a guitar, which makes me think it is some kind of resonance.
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  #4  
Old 11-26-2018, 09:04 PM
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Thanks for the info, is the noise coming from the left side or the right side of the unit? Can you attach a screenshot of CLINK?
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Old 11-26-2018, 09:42 PM
domdomdom domdomdom is offline
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The main noise is coming from the right hand side (looking from the front) towards the top. On the left hand side there is also a fan like clicking noise. And here is a cap of clink.
Attached Images
File Type: jpg clink.jpg (255.7 KB, 177 views)
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  #6  
Old 11-28-2018, 08:15 PM
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It sounds like you are hearing the pump. Before I say anything, noise is a very subjective topic. Given the size and power packed into the CORSAIR ONE, you cannot expect it to be completely quiet. With that said, how loud would you describe this sound you are hearing?
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Old 11-29-2018, 05:38 PM
domdomdom domdomdom is offline
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I can hear it from across a room, and it cuts through noise cancelling head phones, so it is annoying when it is about 1m away. And this wasn't an issue with the first unit I had, so I'm mainly noticing the difference with this replacement. It could be that I had an exceptionally quiet model the first time around, but I have ordered a decibel meter so I can give you an accurate reading when it arrives.

Could you possibly tell me what should I expect to measure? I think I read somewhere that it was 20dB at 1 meter, is that correct?
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Old 12-04-2018, 01:13 AM
calmay calmay is offline
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I have the same issue. Put in an RMA at the start of June and only received it in October. Just set it up last week and getting 40-45Db @ 5% load. Can hear it with headphones on and across the room also.
Right-hand side has a consistent high tone and left hand side has a like a different fan noise.
SN:0018182306817
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  #9  
Old 12-17-2018, 03:13 PM
domdomdom domdomdom is offline
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Quote:
Originally Posted by Corsair StormShadow View Post
It sounds like you are hearing the pump. Before I say anything, noise is a very subjective topic. Given the size and power packed into the CORSAIR ONE, you cannot expect it to be completely quiet. With that said, how loud would you describe this sound you are hearing?
My decibel meter finally arrived. I measured the noise at idle at about 2 feet away and it registered 37.5dB. Is this in the realm you would expect or is this noisy?

Thanks,
Dom
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Old 12-17-2018, 05:46 PM
nox_uk nox_uk is offline
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Talking about water-cooling in general rather than C1 specific:

A lot of 'pump' noise is actually caused by bubbles trapped in the pump. The noise can often be reduced by elevating/running the systems in a way that gets the air out of the pump and into the highest point of the system, ideally a reservoir.

So with the C1 you could elevate it in a way to encourage any air into the radiator for either the CPU OR GPU side, but without disassembly and running the pumps with elevated radiators you probably won't be able to do both.

One of the benefits of AIO's is meant to be the lack of maintenance as they are often sealed units, and in theory shouldn't have air in them.
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  #11  
Old 12-17-2018, 06:22 PM
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Quote:
Originally Posted by domdomdom View Post
My decibel meter finally arrived. I measured the noise at idle at about 2 feet away and it registered 37.5dB. Is this in the realm you would expect or is this noisy?

Thanks,
Dom
That's the ball park considering ambient noise in the equation. Keep in mind that result vary depending on other factors such as environment.
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  #12  
Old 12-18-2018, 02:18 PM
domdomdom domdomdom is offline
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Quote:
Originally Posted by Corsair StormShadow View Post
That's the ball park considering ambient noise in the equation. Keep in mind that result vary depending on other factors such as environment.
Yeah I measured the ambient noise as well which was 35dB, so the Corsair runs 2.5dB above ambient. I guess this is not much so I'll deal with it. I just remember my previous model being inaudible when on the desk next to me which is no longer true with this model.

Do you think I could do anything to dampen the pumps to the body? Like screw them in tighter or put a rubber washer in-between them and the main body, or shield them with something?

I'll try the air bubble trick.

Thanks!
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Old 12-18-2018, 03:50 PM
domdomdom domdomdom is offline
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Okay so I opened up the machine and did a bit of investigating and found that the annoying part of the noise is not coming from pumps or fans but from the rear of the unit towards the top. The pumps are pretty much white noise, which I don't mind. But the noise at the top and back is a tone.

I couldn't see what this is coming from, but it is directly behind the button you press to pop off the top fan. Is it the power supply?
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Old 12-22-2018, 09:08 PM
ai134 ai134 is offline
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I have the exact same problem right now (Top right constant noise). Let me know if you find any solutions.

My first two units were having rattling / grinding sound from bottom left (and one of them stopped working after couple days). I think that was from the pumps. They didn't have this high pitch noise. Rattling noise was louder but they are both annoying to hear constantly. Now, I'm at my third unit after 2 RMAs.

This one has a high pitch sound that is pretty annoying in constant use. Even though I've put it under the desk just because of the noise. When I pay attention, it's coming from top right side. It is also audible from top left, but it's much more significant on the right. I'm guessing it's the power supply, but not sure.

I've contacted support again, and I think I might go through one last RMA in January. That's unless if they tell me that this sound is expected. Then I would just give up and return it.
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  #15  
Old 12-27-2018, 02:22 PM
mnetting mnetting is offline
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The noise you are mentioning is probably the power supply fan. Corsair SFX PSUs use 92mm rifle bearing fans as far as I'm aware and when they spin way up they make a rather unpleasant sound.

I need to do some more testing but I'm wondering if switching the direction of the PSU might help with the sound. They are currently setup so they are pulling air in from the back of the GPU which seems really constrained and really hot. Flipping them would pull air in from the radiator and outside of the case. Depending on how hot the radiator in that could be good or bad. Still it feels like pulling air in from the rad and outside the case would be better in general.

It sounds like v2 will address some of this with a new layout but presently that is all speculation as no official details have been revealed on a V2 despite Intel showing one off at a booth awhile back.
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