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  #1  
Old 28-07-18, 06:31 PM
ZeroInfinity94 ZeroInfinity94 is offline
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High Pitched Noise From Loop

Hello....
Another problem,
So loop is together, clean, filled, bled and yesterday there was this high pitched noise that started, its like a squealy whiny sound, now when I pinch a tube it goes away and when the pump is off (of course) it shuts up.
Any ideas?

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Old 28-07-18, 06:58 PM
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trawetSluaP trawetSluaP is offline
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My initial suggestion would of been coil whine from the GPU but if squeezing the tubing stops it that's not it.

Loss seal on a fitting?
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Old 28-07-18, 07:16 PM
ZeroInfinity94 ZeroInfinity94 is offline
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Not that I can see, checked all fittings multiple times and re tightened everything after cleaning with the Blitz kit from Mayhems also not seeing any kind of moisture out of the loop at any fitting or an seals on the blocks/pump+res.
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Old 28-07-18, 07:21 PM
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Korreborg Korreborg is offline
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It's there when the pump is on, and it's not there when the pump is off.
What do you think it is? You need to find a way to control the pump speed, and then find a speed where it is silent. It's probably running full speed. My D5 pump can go 5000rpm, i have it at 2000rpm.
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Old 28-07-18, 07:57 PM
ZeroInfinity94 ZeroInfinity94 is offline
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To control the speed of the pump I have, Liang DDC, am going to need a way to reduce the voltage to the pump as its a none PWM pump.
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Old 28-07-18, 08:01 PM
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AlienALX AlienALX is offline
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I would take the pump out and check the impeller. It sounds like you may have something in it.
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Old 28-07-18, 08:41 PM
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tolagarf tolagarf is offline
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I had a similar problem last year. What I would suggest you do, is that you take a sheet of A4 sized papir (from printer etc) and roll it together. Put it up to your ear and start pinpointing where the noise is coming from.

For me it was a Bitspower 90 degree angled adapter causing the whining in my loop, and replacing it fixed the whining. So it was probably a bad seal vibrating inside the adapter being caused by high flow pressure
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Old 29-07-18, 12:25 AM
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My dual D5 setup had what sounded like a buzz to a whine. It was actually vibration. I put an extra mouse pad under the feet of the case, it would stop.
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Old 29-07-18, 12:36 AM
FTLN FTLN is offline
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You haven't got it plugged into a corsair commander pro by any chance have you ?

I had some issues with the pump on my gpu aio, horrible squealing sounds, everybody said it was a airlock, but I dont have it any more since running the pump of my motherboard header.
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Old 29-07-18, 12:51 PM
ZeroInfinity94 ZeroInfinity94 is offline
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I have worked out where the dammed noise is coming from and I think I know what it is....
The noise is from my CPU block and I reckon its because I am going from a 1/2" inlet down to a 3/8" outlet.
If its not this then probably gonna switch blocks and go with an EK block as the one I have now is a pretty cheap one from Liquid.Cool
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