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Dynamat in a computer case?

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FudgeNuggets

Member
Joined
Mar 2, 2006
Location
Gone Racing
I saw some at Microcenter the other day labeled specifically for computer cases. I know they've used the stuff in car audio for decades to deaded sound but in a computer case, wouldn't that be bad for heat dissipation? :shrug:
 
i dont think it would really do a whole lot for heat.. you wouldn't be covering the fan holes or anything. i would think you would only put it metal on metal. not all over.
 
i still think it couldnt be good for getting rid of the heat, that stuff is heavy and wouldnt let much heat out, even if it is just metal on metal i thought it would make things worse.
 
Depending which type of Dynamat, it might actually be better for case heat, depending how your airflow is. If it's the underhood stuff that reflects heat, it'll actually give you cooler temps due to the case walls not retaining any heat, and the fans being able to blow it all right out.

Note that I'm just guessing at this, but it makes sense to me.
 
Any sound dampening material holds heats because it's essentially insulation.

As long as your airflow is good, then don't worry about heat build up.

IMO, dynamat is a waste of money for PCs. My friend it used and he did install it all over inside the case properly. I heard his PC before the application and after and I couldn't notice any difference, not even the slightest difference. A month later he eventually took it off.
 
Dynamat claims their hoodliner stuff reflects 97% of radiant heat, which should result in a cooler panel, right?

It just means that it doesn't absorb heat like the standard foam stuff, which is really relative to my original statement.

It does not behave like a heatsink, so don't go slapping that stuff on your CPU now :p.
 
actually mass dampening you panels would work great imho depending on the situation. if you're running water pumps, phase change or enough fans to make your case vibrate then mass dampening can help by decreasing the resonate freq. of the panel.

it is true that this stuff insulates heat, but if you're depending on your case to radiate heat instead of your fans blowing it out of the case, you're probably doing something wrong unless you have one of those zalman passive cases.

//edit
and yes, i've tried it before :D
had a mag3 pump (OMG LOUD) and a paper-thin aluminum case
horrible horrible combination, but matting fixed it all w/ no noticeable temperature changes
but then again i had a blower pushing over 100cfm through it
 
Only a truly tiny amount of heat transfers through the case to the outside world.
I would be shocked if there was a measurable difference with and without dynamat (or foam, or anything else).
Steel doesn't transfer heat for beans to begin with.
 
can't imagine it would do anything for heat. Probably a decent amount for sound though. I have a quite expensive system in my 350z and have it dynomated in the doors and around all 4 of the sub boxes and it makes a big difference from before i had it. i think it would make a bid difference on the sound.
 
can't imagine it would do anything for heat. Probably a decent amount for sound though. I have a quite expensive system in my 350z and have it dynomated in the doors and around all 4 of the sub boxes and it makes a big difference from before i had it. i think it would make a bid difference on the sound.

there's horrible mark up on dynamat; especially in stores.. i'm talking about 400% of the original cost. you could find a friend that works at a store and can get you wholesale prices or there are a lot of comparable brands like secondskin, fatmat, and b-quiet. ebay is a great source for small quantities too.
http://cgi.ebay.com/Sound-Destroyer...emQQptZLH_DefaultDomain_0?hash=item4cebe35882
 
if you want some cheap sound deadening matts.... check out Elemental Design audio.

http://www.edesignaudio.com/index.php?cPath=1_24

eDead 45 = 1 dollar per foot
eDead 80 = 1.50 per foot...

and its going to be the same quality as dynamat.

That being said alot more has to go into silencing a pc than just putting a sound deadening product on the pannels. Your still going to have holes that lead to the outside that will let sound out. You must make it to where air can still flow but sound cant get out, Check the crazys over at silentpcreview.com ... gotten many ideas from them over the years.
 
Well i bought it at car toys because i have a guy i've been working with there for years and he gives me 25% off labor and parts, which makes it about the regular price :). But he is a good guy and has helped me with alot of systems over the years and has told me to buy parts elsewhere before if i can get a better deal. As far as the Elemental Design sound deadener i took a long hard took at that, and the stuff i looked at was the roll on liner that is a liquid and that would be a good choice for a computer case in my opinion. in comparison to the dynamat. Also if you are going dynamat go with the extreme or whatever, its ALOT better than the standard IMO
 
Don't do it, I've got some Dynamat at the bottom of my case and it's the thing I regret most! I had enough to do the entire case but it was impossible to work with, and adds a thick layer that's just too big and unwieldy for computer internals. I can't get it off because it's sticky like tar, so I live with it.
P1010300.jpg
 
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