HOWEVER: The metal in the case DOES conduct heat. Air that is very close
does give up heat to the metal of the case. By adding acoutstic insulation
to the case (even thin) will restarted the rate of heat transfer
significantly. One should use great caution, if you affix any kind of
insulation you should also take measures to move more heat out of the box.
Not doing so will raise the temp of the air in the box and may even create a
fir hazard. If your box has four fans to properly cool, then you then
consider the benefits using some flex duct (2") to "borrow" some cool air
for the a/c system.
Personally, I got fed up with the noise of by two boxes at home (7 fans
each, two on each cpu, 1 for video of internal to power supply and another
for the box.) I replaced them all with higher quality fans and
significantly reduced the noise.
hope this helps
----- Original Message -----
From: "Bill" <selinux@home.com>
To: <slug@nks.net>
Sent: Tuesday, February 05, 2002 11:34 PM
Subject: Re: [SLUG] home network
> On Tuesday 05 February 2002 13:59, you wrote:
> > Thermal transfer is also affected my the size of the heat sink. A
larger
> > heat-sink and a smaller or slower spinning fan (presumably quieter) will
> > accomplish the same goal.
> >
> > > You probably would run into another problem.
> > > While the foam would reduce the noise it would also
> > > act like insalation and draw more heat which could cause
> > > thermal problems.
> > >
> Play the Twilight Zone theme song. Doody doody doody doody
>
> Now imagine you are in a world where life-sized people with full size
tower
> cases serviced by 4 fans (1 blowing in at the front, 1 on the CPU, 1 on
the
> power supply and an auxillary exhaust fan at the rear of the case) want to
> apply a thin layer of sound-deadening material to the removeable panels on
> either side of the case, nowhere near any hot electronic devices and well
out
> of the flow of air through the case, in order to dampen the high-pitched
> whine of assorted rapidly spinning parts.
>
> Doody doody doody doody
>
> If you don't know where to find the foam, that's okay. I appreciate all
the
> help with the physics.
>
> Bill
>
>
> > > >Does anybody know where I could get some very thin (.125" / .375")
sound
> > > >absorbing foam? I am thinking a good case mod would be to apply a
layer
> >
> > of
> >
> > > >that material on the inside panels with a little spray-on adhesive.
> > > >
> > > >Bill
> -----
>
> Linux a.genesis.com 2.4.17 #1 Tue Feb 5 20:56:03 EST 2002 i686 K7-750
> 6:29pm up 2:06, 2 users, load average: 0.00, 0.02, 0.00
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