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YMAN
10-08-01, 09:03 PM
Hello,
I was a bit curious on how I could quiet up a case.
I was thinking something on the lines of a sound
deadening material like foam to put in the case.
(side pannels, bottom, top, parts ot the front ect.)
I have heard of this stuff before but not payed any
attention to it. How much does this stuff cost? is it
worth it, has anyone tried it?

Any other Ideas are also welcomed.
I do not wish to change fans to "Quiet" ones,
nor attempt a watercooling setup.
(Reliablility & Damage Possiblilities)

If there are any low noise fans however that also
produce alot of CFM, I would like to know about them.
(Note=Must be standard Pc fan size. Ex. 50mm, 80mm 96mm ect.)
I would also appreciate any pics that can help.

Thanks
YMAN
10-08-01, 09:08 PM
I was also looking at another post about sound deadening
devices.

Sounds interesting!
If anyone can find such a device let me know. :D

* post located in alternative modding *
It is called: Anti Noise Theory
BigJohn
10-08-01, 09:09 PM
Somebody said put powedered graphite in the fan to lower the noice, but that might not be to smart.
YMAN
10-08-01, 09:12 PM
I think Powdered Graphite is some type of "dry" lubricant.
but isn't it conductive? :confused:

I think I will pass on this idea? :rolleyes:
BigJohn
10-08-01, 09:22 PM
3in1 oil then maybe?
lennytiger
10-09-01, 03:15 AM
Dynamat works well line your case sides in that it does help!!
Über~PhLuBB
10-09-01, 04:44 AM
Well, the most ideal way would be to put 1" of foam rubber between every single outside-touching surface and the inside of your computer.

But since you can't do that (Behind the motherboard, and by the 5.25" drives), you can use this product from Edmund Scientifics called Sorbothane. It's made for lessening impact force, but it should work marvelously for sound too.

http://www.edmundscientific.com/Products/ListProducts.cfm?catid=215
YMAN
10-09-01, 05:23 PM
Can I have some more information and maybe a site, pics.
Not to mention a place that sells it online? (The dynamat stuff)


I am also interested in this Sorbothane.
Has anyone tried it?
If someone has please let us know and I cannot stress more, I
love pictures!
Is this stuff conductive, it seems like it may have an oil or somthing that would be conductive?

You see how it is shiney:
YMAN
10-09-01, 05:28 PM
I am interested in the Sorbothane stuff.
Is it conductive?
Has anyone tried it?
One thing I LOVE the MOST is PICTURES!:D
I must admit this stuff is tempting even if it doesn't work!

Also the Dynamat stuff...You are leaving me in the dark :(
What is it?
Were can I buy it? (Online)
Do you have any pics?
Please tell us some more details!


Oups, I seem to have posted twice?
I think something is wrong with the OC servers?
At first the one above did not show up?
Über~PhLuBB
10-09-01, 06:18 PM
Originally posted by YMAN
I am interested in the Sorbothane stuff.
Is it conductive?
Has anyone tried it?
One thing I LOVE the MOST is PICTURES!:D
I must admit this stuff is tempting even if it doesn't work!

Also the Dynamat stuff...You are leaving me in the dark :(
What is it?
Were can I buy it? (Online)
Do you have any pics?
Please tell us some more details!


Oups, I seem to have posted twice?
I think something is wrong with the OC servers?
At first the one above did not show up?

I bought a sheet or Sorbothane a few years back for a motorized scooter project I was undergoing.

It looks shiney because it's rubber. And as such, is completely nonconductive. It's thin enough that you don't need to have any of it touching any of your components anyway, even between the motherboard tray and case panel, you'd still be able to squeeze 3 sheets of the stuff in there.

It looks and feels like any old rubber sheet, but if you took a hard object and dropped in onto the Sorbothane, you see why it costs so much. Something that might bounce 5 times bounces once then comes to a stop.

It's great stuff, albeit extremely expensive.

Edit: Replying to your red-text edit, I don't know about Dynamat. It seems to be widely used, but I don't know ANYTHING else about it. I bet you could get more info if you posted a thread called "What is Dynamat?".
UnseenMenace
10-09-01, 06:20 PM
Originally posted by YMAN
Also the Dynamat stuff...You are leaving me in the dark :(
What is it?
Were can I buy it? (Online)
Do you have any pics?
Please tell us some more details!

Dynamat is a trade name for sound dampening sheets used by the car audio industry, an alternative is Punchmat by Rockford Fosgate they work by altering the resonance frequency of the pannel and can be obtained from all good car audio dealers.
Another product to consider is the 'lead' sheeting used on roofing, this has also been used by the car audio industry as a cheap way to cut vehicle noise.
Sound dampening in the car audio industry is heading towards using composite sprays such as 'noize killer' as this does not have the weight problem associated with matting
YMAN
10-09-01, 07:05 PM
Does noise killer spray work?
Atleat would it help in a pc?

Were can I buy Dynamat and find more info on it?

That audio frequency thing, how does it work? Can it
be purchased online, if so where?
Is it very effective?
I herd of this before, but I don't know much about it.
Über~PhLuBB
10-09-01, 07:18 PM
Hey, I just found some nifty stuff, you may want to check it out:

http://www.sounddomain.com/sku/CAEVB5

It's only $15.95, and coveres almost 5 square feet!

Or, you may want to go with a spray variety:

http://www.sounddomain.com/sku/CAEVB1S
YMAN
10-09-01, 07:30 PM
I like the spray kind.
Do you think it will be a good choice?
I mean, I dont have dual 14 inch subwoofers!
I just would have a ton of fan/SCSI hard drive noise...
Über~PhLuBB
10-09-01, 07:53 PM
Originally posted by YMAN
I like the spray kind.
Do you think it will be a good choice?
I mean, I dont have dual 14 inch subwoofers!
I just would have a ton of fan/SCSI hard drive noise...

I honestly don't care how loud my computer is, I would just turn up my game volume if it got too high (Which it hasn't--yet).

But some people are very particular about how loud they let their computers get. If you've got $20 extra bones to spend, and you can't deal with a loud computer, by all means, buy some. If you're like me, and don't give a hoo-hah, then save your money for a neon light or a case fan. =)
YMAN
10-09-01, 07:58 PM
Is there anything elts that hasent been covered or anything too
add to what has?
Über~PhLuBB
10-09-01, 08:19 PM
Originally posted by YMAN
Is there anything elts that hasent been covered or anything too
add to what has?

I can't think of anything.
YMAN
10-09-01, 08:50 PM
Ok, Thanks Everyone
If anyone elts has a comment or another idea,
feel free to post!
Warlord2
10-09-01, 11:22 PM
dynamat can be found here (http://www.crutchfield.com/S-l5mMaAHNQS5/cgi-bin/prodsearch.asp?s=0&g=890&est=&search=Dynamat)


its a little too expensive for my blood


I also found this wood stuff at homedepot that is suposed to dampen noise $10 for a huge 8'x5' sheet

I would of got some but its realy dusty type of stuff and I did want the dust in my computer
YMAN
10-10-01, 02:46 PM
What exactly is this "wood" sheet?
UnseenMenace
10-10-01, 05:43 PM
The wood sheet mentioned is probably 'MDF' or medium density fibreboard which is a highly compressed chipboard type wood known for its good accoustic properties repsctive to price. A more superior wood is marine plyboard however this costs a great deal more.. Both are used to make speaker cabinets in the car audio industry
UnseenMenace
10-10-01, 05:50 PM
Originally posted by YMAN
Does noise killer spray work?
Atleat would it help in a pc?

The noise killer spray works in the same way as dynomat, niether are true sound proofing they are dampers.. they do this by changing the frequency at which the surface to which they are attached vibrates, a slight sound absorbsions may also be found

Rockford Fosgate Noize Dampening Products (Noize killer and Punch Mat - like dynomat) can be found here (http://rockets2.rockfordcorp.com/is-bin/INTERSHOP.enfinity/eCS/Store/en/-/USD/RFProductsListNonBuy-Start;%24sid%24_mPOOzvEy7HC1IDmXIOz_NHTIlyL9nB3?Ca tegoryName=RF_NoiseBlocker)
YMAN
10-10-01, 06:32 PM
Isn't There some type of padding that dampens sound?
I herd of this before...It was white and had ridges on the
front. It looked a bit different than packing foam.
UnseenMenace
10-10-01, 06:57 PM
On the sides of my case I use Rockford Fosgate thermal hood liner for the simple reason it features a heat reflective surface and as such does not 'store' heat to the same extent that Dynomat does. I accompany this with noise killer (called noize blocker now for some reason) which is sprayed on the internal frame of the case.
JML
10-11-01, 07:42 AM
www.2cooltek.com - they carry the foam
YMAN
10-11-01, 02:31 PM
Thanks For the link!
That was exactly what I saw!

Have you used this stuff before?
Warlord2
10-13-01, 10:54 PM
The wood sheet mentioned is probably 'MDF' or medium density fibreboard which is a highly compressed chipboard type wood known for its good accoustic properties repsctive to price. A more superior wood is marine plyboard however this costs a great deal more.. Both are used to make speaker cabinets in the car audio industry


I dont think thats the same stuff


what Im talking about is very soft and was in the insolating section of the hardwood store

i could be wrong but I you talking about partical board?
UnseenMenace
10-16-01, 04:18 AM
Originally posted by Warlord2


I dont think thats the same stuff

what Im talking about is very soft and was in the insolating section of the hardwood store

i could be wrong but I you talking about partical board?


Perhaps we are talking about different types of material however I would believe that using any material for this purpose which insulates would not be a good thing respective to case temperatures
foxmulder
10-16-01, 07:56 AM
One of the most effective measures for me was to tke the HDD (IBM 40 Gig 7200rpm) and put it in a 5 1/4" Drive bay on top of some rubber foam. The foam goes only on the sides so that air can still circulate around the drive freely. If you have a high rpm drive you'll be suprised how much difference this mod makes and it's essentially free.

Other than that I use water cooling, 2x 80mm Noise Blocker Fans which are really great and very quiet. The might not meet your cfm requirements though.

Another thing is to put a really silent fan in your PSU. I have a 80mm Papst 12dba fan that I put into mine and you can't hear it at all.

The only thing still making noise in my rig is my ****y NB cooler which I'm gonna replace with water cooling this week.