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Re: [vox-tech] Safe to run 486dx2 w/o fan?
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Re: [vox-tech] Safe to run 486dx2 w/o fan?



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http://support.intel.com/support/processors/embedded/intel486/8005.htm
"The Intel 486DX2® microprocessor is specified for operation when Tc (The 
Case Temperature) is within range of 0 degrees C to 85 Degrees C. Tc may be 
measured in any environment to determine whether the Intel486DX2 
microprocessor is within specified operating range. The case temperature 
should be measured at the center of the top surface opposite the pins."

That's what, 150 F?


On Wednesday, January 30 2002 11:41 pm, Jeff Newmiller wrote:
> On Wed, 30 Jan 2002, Bill Broadley wrote:
> > On Tue, Jan 29, 2002 at 06:52:58AM -0800, Ryan wrote:
> > > I just took the fan off my 486DX2 66 tu use on my gfx card (the card's
> > > fan developed an extreamly annoying buzz)
> > >
> > > Think the 486 will fry if I just slap some thermal grease and a
> > > heatsink on it?
> >
> > The specs are available afaik, just get a temp probe and measure
> > it yourself.  Airflow over the fins from the case could easily
> > make a factor of 10 difference.
>
> I don't think package surface temperature is useful for identifying
> problems... it can be 10 or 20 degrees C different than die temperature.
>
> ---------------------------------------------------------------------------
> Jeff Newmiller                        The     .....       .....  Go Live...
> DCN:<jdnewmil@dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live Go...
>                                       Live:   OO#.. Dead: OO#..  Playing
> Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
> /Software/Embedded Controllers)               .OO#.       .OO#.  rocks...2k
> ---------------------------------------------------------------------------
>
> _______________________________________________
> vox-tech mailing list
> vox-tech@lists.lugod.org
> http://lists.lugod.org/mailman/listinfo/vox-tech

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