Mailinglist Archive: opensuse (3031 mails)

[Basil Chupin <blchupin@xxxxxxxxxx>]

Aaron Kulkis wrote:
> Basil Chupin wrote:
> > Aaron Kulkis wrote:
> > > Per Jessen wrote:
> > > > Dave Plater wrote:
> > > >
> > > > > It seems the cpus are outpacing heatsinks 60c is a very unstable
> > > > > temperature, think about it, you almost have 4 cpus in one chip
> > > > > carrier, except for the interface with the outside world. All this in
> > > > > a package smaller than a P4. The heatsink supplied is most probably
> > > > > made for a single or dual core anyway. Heat is the enemy of 
> > > > > electronic
> > > > > reliability. Dave
> > > >
> > > > I've tried to find some recommendations on the CPU-temperature, but 
> > > > I'm
> > > > not having much luck.  The warning levels in the BIOS are 60/70/80. 
> > > > Also, I would have thought the heatsink supplied by AMD for the Phenom
> > > > would be sufficient for 4 cores - but maybe not. 
> > >
> > > You would think, but I'm not wild about the fan-speeds neeed on
> > > the manufacturer-supplied heatsink with its dinky little fan.
> > >
> > > I started using after-market fans several years ago for both
> > > better cooling and lower (quieter) fan-speeds that result from
> > > using larger-diameter fans.
> >
> > The bigger diameter of the fan the bigger diameter is the spindle, 
> > the bigger is the 'dead spot' where no air is being blown -- and this 
> > is also the where the heat-dissipating part of the cpu under the 
> > heatsink is located.
>
> And these heat-sinks using the larger sized fans are designed to
> take that into account.  The "dead zone" doesn't extend forever;
> it is almost or entirely gone one "spindle diameter" past the
> fan blades.

What you state in no way takes away from the fact that the cpu's 
heat-exchange surface is located directly under the middle of a standard 
cpu heatsink's fan's spindle and does not get the full benefit of the 
fan's airflow.

Having the "dead zone" 'disappear' "one 'spindle diameter' past the fan 
blades" is as useful to the cooling of the cpu as tits on a bull.


Ciao.


--
I was very heavily into pornography. Then my pornograph broke.

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