How to quickly & easily fix coil-whine(coil choke noise)

[lexluthermiester]

Reporting back.

Patient: Asus GeForce RTX 3070 ROG STRIX OC

Before: whining like hell

After: whining, but less

Conclusion: operation was partially successful, the coil whine is now more pleasant to ears, but it's still present

Any improvement is good. Did you make sure to use enough glue to seal all the gaps?

 

[deepblade]

I was expecting something better and I think that job was well done, but maybe I missed something. I will let it roll for few weeks and maybe then add another layer of glue.

 

[Shrek]

I fear that it is the coil in the box that you are unable to get to.

 

[lexluthermiester]

I fear that it is the coil in the box that you are unable to get to.

That is easily sealed. A generous amount of superglue at the bottom and the same on top. I love seeing those types, they're easy-breezy! They're rarely used these days though..

 

[Mussels]

You can see its already glued, that factory glue can crack or dry out and release the kraken whine

as lexy says, seal the earth, wind, fire, and water sides and then the avatar can.... fifth element multi-pass? captain planet? power rangers?
Wait maybe it's those cool transformers that join together....

Glue the sides and then top

 

[lexluthermiester]

You can see its already glued, that factory glue can crack or dry out and release the kraken whine

as lexy says, seal the earth, wind, fire, and water sides and then the avatar can.... fifth element multi-pass? captain planet? power rangers?
Wait maybe it's those cool transformers that join together....

Glue the sides and then top

The ones that are are enclosed on all sides except the bottom can be easy but you have to use a generous amount of superglue and let it wick in.

 

[rudypowersa324]

The ones that are are enclosed on all sides except the bottom can be easy but you have to use a generous amount of superglue and let it wick in.

Hi, there i have laptop dell 7791 and has coil whine closer to CPU GPU and the sound are high .
Where should i put the hot glue on the motherboard as you can see the picture ??? Thanks

 

[lexluthermiester]

Hi, there i have laptop dell 7791 and has coil whine closer to CPU GPU and the sound are high .
Where should i put the hot glue on the motherboard as you can see the picture ??? Thanks

First, don't do hot glue, it's a pain to apply and very difficult to get a proper seal with. SuperGlue. See below.

Note the green highlights. With a laptop, it's very difficult to narrow down which one is making the noise. So just do them all, the ones you circled in red as well as the ones I circled in green. SuperGlue is cheap most places, so if you use most of or a whole tube, no big loss. Don't be afraid to be generous with it as superglue will not hurt electronics. It's not electrically conductive or capacitive, near chemically inert as a fluid and completely chemically inert once cured.

Welcome to TPU!

 

[Mussels]

Yeah, hot glue doesnt work for long. I tried it and within a few days it had come loose and barely made any change.


It has some uses, but not for coils/chokes with this design.

 

[Mister300]

Be careful, I am a professional Chemist and CA glues are flammable. If board gets hot it could auto ignite the glue. I would go to a electronics supply house and get an epoxy to use.

 

[lexluthermiester]

Be careful, I am a professional Chemist and CA glues are flammable.

Most glues are flammable in their liquid state, few in their solid state.

If board gets hot it could auto ignite the glue.

No it can't. SuperGlue will only ignite when exposed to direct flame and that doesn't apply to all formulations. I have never seen or heard of SuperGlue ignite on any electronics it's used on once cured. The flash point of SuperGlue in it's liquid state is well above the heat that any electronics will generate in a functional condition. Any heat that is enough to flash ignite liquid SuperGlue would be enough to burn out whatever electronics it's being applied to.

 

[Mussels]

What lex said. The flammable parts evaporate, and by the point the solid remains are flammable your PC is already on fire.

 

[Valantar]

From a quick search, the only autoignition temperature I could find for a superglue was 485°C, which ... well, if your board is that hot, you've got bigger problems!

 

[Mister300]

Most glues are flammable in their liquid state, few in their solid state.

No it can't. SuperGlue will only ignite when exposed to direct flame and that doesn't apply to all formulations. I have never seen or heard of SuperGlue ignite on any electronics it's used on once cured. The flash point of SuperGlue in it's liquid state is well above the heat that any electronics will generate in a functional condition. Any heat that is enough to flash ignite liquid SuperGlue would be enough to burn out whatever electronics it's being applied to.

I use a piece of wire to apply CA if I light the hardened bead it does burn folks.

 

[Valantar]

I use a piece of wire to apply CA if I light the hardened bead it does burn folks.

... yes, if exposed to an open flame. If there are open flames within your PC, you have more serious problems than whether or not the glue used to reduce coil whine is flammable.

 

[lexluthermiester]

... yes, if exposed to an open flame. If there are open flames within your PC, you have more serious problems than whether or not the glue used to reduce coil whine is flammable.

This....

I use a piece of wire to apply CA if I light the hardened bead it does burn folks.

...so let it go. We're not sheep or dummies here.

 

[Mussels]

Yeah

I don't think that's a valid test.
Go look at post #137

 

[Wayne92]

Hey, i Put my 6900xt Saphire Nitro+ SE under Water with Alphacool WB.
Now my Card have a rly high Coil whine:/
I will try glue them, but idk where are the coils in my GPU ...
Can some one tell me , what i have to glue?
Sorry for my bad english.

 

[Athlonite]

Hey, i Put my 6900xt Saphire Nitro+ SE under Water with Alphacool WB.
Now my Card have a rly high Coil whine:/
I will try glue them, but idk where are the coils in my GPU ...
Can some one tell me , what i have to glue?
Sorry for my bad english.

 

[Wayne92]

Thx a Lot *.* I will try IT tomorrow

OK i did it now, i think its kindy Work
Still little Bit Coil whine at 400 Watt Power Draw.
But its much better *.*

 

[Mussels]

Thx a Lot *.* I will try IT tomorrow

OK i did it now, i think its kindy Work
Still little Bit Coil whine at 400 Watt Power Draw.
But its much better *.*

The whine may also be from your PSU

I had whine until i moved from corsair 750W to Fractal 860W (Both Platinum rated)

 

[Wayne92]

Dont think its the PSU, its a new Seasonic Titanium 850W.

 

[Bill_Bright]

Dont think its the PSU, its a new Seasonic Titanium 850W.

Don't be lulled into a false sense of security just because a product is new and/or of a quality design from a reputable company. Even the best of the best can and will have a flawed unit, or one that fails prematurely every now and then. Not to mention, they can be damaged by other abuse such as rough handling during transport, exposure to excessive heat or abnormal electrical input.

I am not caffeinated enough this morning to read back through 6 pages, but I don't think this was mentioned in this thread yet. You can grab the inner tube from a paper towel roll and use that tube as a stethoscope to [hopefully] pinpoint the source of the whine/buzz.

To verify it is not the PSU, you can [CAREFULLY] unmount the PSU from the computer case and [CAREFULLY] swing it outside the case. If the source of the noise is the PSU, you should be able hear that the source location has changed.

 

[lexluthermiester]

Dont think its the PSU, its a new Seasonic Titanium 850W.

Unless you have tested with another PSU to rule it out, it's possible.

I am not caffeinated enough this morning to read back through 6 pages, but I don't think this was mentioned in this thread yet. You can grab the inner tube from a paper towel roll and use that tube as a stethoscope to [hopefully] pinpoint the source of the whine/buzz.

That is a very clever, simple and useful method.

 

[qubit]

Unless you have tested with another PSU to rule it out, it's possible.

Also, sticking one's ear up against it can be reasonably definitive.

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