[Ti] Need cool air vs. heat Advice
~flipper
lord.flipper at gmail.com
Wed Jun 15 17:46:28 PDT 2005
Kynan Shook wrote:
>An easy way to tell is to use ThermographX,
>which can show you the temperature ranges for
>other people's computers alongside your own.
>http://www.kezer.net/thermographx.html
>
>However, without consulting that program, I'd
>say that your temperatures are probably in the
>high end of the normal temperature range. Most
>chips can withstand a temperature of about 125°C
>(that's the internal, or junction temperature),
>though CPUs tend to have a slightly lower
>maximum temperature, around 105°C.
>Unfortunately, there's no easy way to find out
>how this corresponds to temperatures measured by
>the OS, which are often thermal sensors attached
>outside the chip, so they will read less than
>the junction temperature.
>Also, keep in mind that the sensors used are
>generally very imprecise - some of them have a
>range of accuracy of as much as +-12°C (22°F).
>
>In general, the computer should reduce the CPU
>speed itself and eventually go to sleep if it
>thinks it is getting too hot.
>Generally, this means a hardware malfunction -
>under normal conditions, the fans can easily
>keep the machine within normal temperatures,
>even if the case feels quite hot to you.
>Remember, the case feeling hot is really a
>*good* thing in some sense - it means that all
>the heat you can feel is being carried *away*
>from the processor.
Thanks Kynan,
I'm not really alarmed. The powerbook is running
great. I was aware of the 'good news' re: the
heat being dissipated, and the case feeling hot,
as a result. It's interesting. I've noticed the
processor (underside sensor) and the
proc/controller (also underside) will drop about
10 degrees F, when the Powerbook wakes up from
'sleep' and an app runs. Seems a bit odd, but one
never knows.
brian s
More information about the Titanium
mailing list