[vdr] Re: Hardware falures

[Stefaan Coddé <stefaan.codde@pandora.be>]

This is my last posting about this topic, if You want to continue, best with
e-mail then.

The principle of a heat pipe is the same : it transports the heat from a
hot spot to another place where the actual cooling takes place.
Big advantage : You only need one pipe (not two like with water cooling)
You can buy commercial heatpipes in germany, I'll sen you the url later .
but their implementation takes far more efforts eg.. there are different
types
and keep an eye on bend radius.
And then, You still end up with a case like the futureclient pc eg large
heatsinks
on the sides of the case. Making such case will be more expensive then
buying the futureclient.

And the drilled holes that I've mentioned? Take a look at *any* consumer
audio amplifier.
They don't look bad at all but it's alot of work to drill them in line.

Stefaan



----- Original Message -----
From: "Dr. Werner Fink" <werner@suse.de>
To: <vdr@linuxtv.org>
Sent: Tuesday, April 30, 2002 11:26 AM
Subject: [vdr] Re: Hardware falures


> Question: Do you've ever heard about heat pipes?  I do not talk about
> CoolerMaster's loud CPU coolers but solutions used in industry and
> for notebooks.  Would be interesting to have a source where ordinary
> customers can buy such heat pipes at a normal price.  AFAIK there is
> a high priced desktop PC available in germany, nevertheless heat pipes
> arn't that new.
>
>           Werner
>
> On Mon, Apr 29, 2002 at 11:31:57PM +0200, Stefaan Coddé wrote:
> > I doubt that 35°C is too much for the tuner on a Rev1.3 board
> > but if the outside coax plug reached that temp , then it sure get's hot
> > inside
> > the tuner meaning, higher then those 35°C.
> > A fan can help but add's extra noise and there's a silent solution
> > available.
> >
> > Heat has always been a problem in a PC  but everyone seems to forget the
> > basic
> > behaviour of hot air.... it rises and hit's the top of the case.
> > Now : this tip works only good on desktop cases and sure NO towers.
> >
> > Drill many air holes thru the desktop cover, right above the tuner.
Holes
> > with a diameter
> > of 3mm and pitch of 8mm will do just fine.
> >
> > Second : if You place the unit in a rack, be sure that there's room
enough
> > above the computer
> > so that the hot air can excape there too and there ya go... no fan
needed.
> >
> > Still getting too hot?  Add a heatsink on the tuner and the DSP and
drill
> > more holes in the
> > cover.
> >
> > I've drilled approx 1200 holes in my desktop cover.  This was needed
cause
> > it's water cooled and the radiator
> > is located inside the chassis and there's no fan blowing air through the
> > radiator....and... it works.
> >
> > Tower PC's : too bad, all cards are mounted horizontally which is VERY
bad
> > for heat dissipation.
> >
> > btw : for those who are interested.  I'mm working on a water cooled ATX
> > power supply but here too:
> > there are still ventilation holes needed on top cause *every* component
on a
> > board generates heat.
> > Some more then others.
> >
>
>
>
>