Mailinglist Archive: opensuse (3031 mails)

[Aaron Kulkis <akulkis00@xxxxxxxxxx>]

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.


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