On Thursday 06 March 2003 01:18 am, Corvus Corax wrote:
> Am Thu, 6 Mar 2003 10:38:44 +1100
>
> schrieb Con Kolivas <kernel@kolivas.org>:
> > That doesn't make sense. His post said the temperature was 20 degrees
> > lower when it failed.
> >
> > Con
>
> I think it does,
snip
> if the bridge has only a heatsink, its temperature is somewhat like
> (system TEMP)+ ( produced heatper time / heat given to the air by heatsink
> per time ) where the heatsinks capacity is dependent on the delta
> temperature, too, gets complicated ;)
>
> in short, the chips hotter than the rest of the system and if it has high
> load it gets even hotter, but its temp is still dependant on the main
> system TEMP. ;)
It is also referred to as thermal inertia. It takes time for the heat sink to
1. heat up
2. start transferring that head out
During that time delay the chip may easily overheat in a burst of activity.
Same thing happens to fuses... a "slow blow" fuse will blow faster in higher
ambient temperature, under conditions that are normal because the AC was
turned on...
-- ------------------------------------------------------------------------- Jesse I Pollard, II Email: pollard@navo.hpc.milAny opinions expressed are solely my own. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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