On 23 Feb 2001, at 17:05, John R Pierce wrote:
>
> prime95 *definately* heats up CPUs in a hurry. My p3-800E goes from a comfortable
> 85F or so when idle to 115F in seconds when I run Prime95. It takes longer
> to cool back down.
Thermal inertia ...
> The CPU temp should
> be fine as long as its under like 70C (although cooler is obvioulsy preferable,
> 50C is perfectly reasonable.
This depends a lot on where the sensor is. Slot A Athlons do not have
a sensor in the processor chip itself, if your system has a sensor it
will be on a bit of wire wedged between fins of the heatsink. This is
reading the heatsink temp not the processor temp. Allowing for
temperature gradient through the heatsink (and the junction between
heatsink & processor cartridge) I think 50C may be dangerously high
if this is indeed the method of measuring the "processor"
temperature. (Nevertheless it would still identify a failed cooling
fan!)
I think socketed Athlons usually have the thermistor mounted in the
socket itself, which should be a bit more reliable as an indicator of
true CPU chip temperature, although not as good as the Intel system
where the thermistor is mounted in the processor package itself.
Regards
Brian Beesley
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