Effective noise reduction device is very need

[vgrigor]

Noise from update coolers is very hasitating feature for around people and for myself.
I have, for example, ElanVital FC-6 for Atlon Xp 1600.
It makes 41 degrees with 4300 rotation speed.
And not changing at any work,- only for 4 degrees.

And this is makes unneeded noise.



So I need to find the bettter as possible solution for noise reduction.

There is three sound ways from cooler-
1- By air within computer.
2- By mechanical propogation through the MB and case.
3- case as resonator effects.

It is also need to define what is proportions betewen them, to eliminate most bad step by step.

First way may be good resolved using case wraping within them by porolon material, or plastic cover with air cavities, got from monitor buying pack.
May it be three layered paper, second -making air field between two others.

So it need to advice which of them is most effective, and worth to use this double to increase effect, or there already is need to take into attention two other ways of noise distribution firs?
(Noise is hasitating, so if people saying that your eye worth money, then you health suffering from sound may be too.)

the second part of first question is- worth to make some attached to cooler device to eliminte noise already where it appears, making protection layered?

The more dificalt qustions is how to eliminate two others ways of noise distribution.

It may be some noise compensating (from advanced things) or just absorbing as in first way, but here is also need to choose effective solution due to mechanical part must be not fly on air(desired, but low probable, to my suffer) but
some firmly connected.
And making this connection is not sound condactive is the important qustion.

Making case not resonant - showing how works your HD and cooler moe than they self does, the also very interest and not very simple.

Some solution there is at cars. May be some analogous ideas?

May someone propose some solutions or evaluations for this noise eliminating questions ? Thanks

 

[stool]

Welcome to the forums.

Some suggestions;
Try to use larger(120mm) fans, as they are far quieter than smaller ones.
Use rubber grommets or washers between the fans and case, and nylon screws where metal meets metal.
Consider an electrical or mechanical fan control(using rheostats and/or voltage regulators) to alter your fan speeds as needed. Do a search here in the forums for some of the various guides to do this.
If available get some acoustic foam, Dynamat, or the like, and attach it inside your case, to the bottom, sides and top.
Finally, consider going to watercooling as a means of eliminating some of your fans.

 

[It_The_Cow]

The more dificalt qustions is how to eliminate two others ways of noise distribution.

Record all the noise your computer makes. Then continuously loop it whenever your computer is on. Painstakingly position your speakers so there is a node where your ears will be the most. Sound waves are my enemy...

 

[vgrigor]

I Tried, but not much effective at low spped,
due to case good sound delivery.

Need to isolate coolers from case.

But effect is just visible.

 

[FIZZ3]

It seems most effective to me to set up the system in such a way that it does not produce annoying noise to begin with.
You will always need some air convection, and then 120mm fans and grommets etc are a good idea, but the main thing is to get

1) pc parts that do not produce ridiculous amounts of heat

2) the best quality/most effective cooling system

For example- the most powerful videocards these days produce a lot of heat and need whiny small diameter fans to cool them down. If you choose a slightly (say 20% max) less powerful videocard, you can do with either a non-obnoxious fan or even a passive (aftermarket) sink, like the Zalman.
With CPU's it's the same thing; 3Ghz+ (Intel) means lots of heat and even the stock HSF will produce a nasty whine. Choose a 2Ghz model instead and you can do with much less cooling. Set up a watercooling system and you can make a very effective 120mm-only cooling loop that is really quiet.

 

[vgrigor]

It is need to resolve all problems in one silutions,
if this site is technical maniaks really...

Or just weaks .. else.

 

[stan03]

you can get those "silencer kits" that come with these black peices of sound deadening material. you stick it on the sides of you case on the inside and they supposedly reduce noise. never tired it myself

 

[RedArmy]

I think that targeting particular noise sources is more effective than trying to silence the whole case.

 

[PatrickBateman]

I say: "SHUT THEM ALL DOWN!!!"

 

[Soja]

Wow, did that help much?

 

[PatrickBateman]

oh, yes.

I do all my cases this way.

 

[stan03]

dude thats awsome.... how much did it help? or did you just never run the computer without all the foam? where did you get that anyway?

 

[PatrickBateman]

I haven't run a machine without foam for quite a while.
The tricky part is the fan vents. Best to have some indirect flow path to stop the noise just going straight out.
My cases are very quiet.
I put vibration dampening sound barrier on the case, then the foam. I put a layer of barrier between 2 layers of foam if I have room for 2 layers of foam.

 

[1Time]

That looks similar to the inside of my case. I used black foam rubber from a sleeping mat and sound deadening sheets similar to Dynamat. In all it probably amounted to a 10% noise reduction. Using slower, bigger fans helped a lot. My two 120mm Evercools run very quiet at 7volts, my 92mm Zalman HSF is only 20dBA, and my TruePower 480 PSU is quiet enough.

vgrigor, you also may find it helpful to search the Forums for the words "quiet" and "120mm".

 

[vgrigor]

Good solution - for making 120mm blower at Supply block,
some indirection
total case - else sound that is good reflecting can find holes in case, - in back side - where all wires are placed,
using very thick material
making possible of isolating all else -
that is not possible if you can not isolate back of your case.

But does it suffitient cooling ?

But Usually not with good results - case is sound transparent.
Or you need to lift up yuor blowers upon heat sinks to mechinically disconnecting them.

Much deal with weak result goes often with such solution.
I also tried.

Back side- sound stopper like at cars probably need.

But better to stop blowers.