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.
--
Tom Brinkman Corpus Christi, Texas
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