On Thursday 10 July 2003 08:49 am, Tom Brinkman wrote:
> On Thursday July 10 2003 05:52 am, Thomas Backlund wrote:
> > > I have an AMD XP2000+ CPU which is currently running at 60
> > > degrees C while
> >
> > the
> >
> > > Mother Board temperature is 24 degrees C. I remember that these
> >
> > temperatures
> >
> > > were quite a bit higher during Summer.
> >
> > If I remember the AMD documentation correctly,
> > it was stated that anything below 70 degrees C is acceptable,
> > but as far as the core goes it's "temperature limit" is somewhere
> > between 90 and 110 degrees C sepending on manufacturing batches
> > ...
>
> The AMD docs I read said 90 to 95C internal core is the failure
> limit. They also said to add 10 to 20C to reported probe
> (thermistor) cpu temps, to approximate the internal core temp.
> Something overclockers have long known. So 60C from a probe could be
> as high as 80C core temp. Unless that's under extreme load (ie,
> cpuburn, 100% load), it's too high. If 60C is reported by a
> motherboard reading the cpu's internal diode, then 60C is OK.
>
> From a probe the reported temp would need to be at least under
> 60, and maybe under 50C, to qualify as 'acceptable'. IME, for
> motherboards which use a probe, +10C is probly OK for temps read
> from a cpu pin. Use +20C if a contact thermistor is used. Most
> newer boards read from a pin. There's a few motherboards in the
> last year, that can read the internal diode AMD began putting in
> their XP cpu's since 6/10/02. On those boards the reported temp is
> the core temp. With either accurate diode, or approximate/adjusted
> probe reporting, you can expect the temps to go up as the cpu ages.
> Say about 5C after around 18 months.
Don't know about everyone else, but with my XP2100, when I was running at 50C;
55C under load, as reported by lmsensors, I had intermittent crashes,
especially with games. So I think the part about the cpu core actually
running quite a bit hotter than what is reported is true.
Since I made a few mods and its running at about 38C now, the crashes have
disappeared. YMMV, as the venerable T. Brinkman says... :-)
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