Re: GSoC2007: cnst-sensors.2007-09-13.patch

On 01/10/2007, Kevin Oberman <oberman_at_es.net> wrote:
> > Date: Mon, 01 Oct 2007 19:34:56 +0200
> > From: mato <gamato_at_users.sf.net>
> >
> > Kevin Oberman wrote:
> > >> From: martinko <gamato_at_users.sf.net>
> > >> Date: Tue, 25 Sep 2007 20:35:44 +0200
> > >> Sender: owner-freebsd-current_at_freebsd.org
> > >>
> > >> Chuck Swiger wrote:
> > >>
> > >>> The threshold temperature varies depending on the exact part, but is
> > >>> generally around 65 Celsius-- and is hot enough that you don't really
> > >>> want to encounter it in normal operation, as it's a sign that cooling is
> > >>> not adequate for the system to continue to operate safely at full
> > >>> speed.  Most of the Intel CPUs also include a second thermal circuit
> > >>> called THERMTRIP which fires around 95 Celsius which will shut the CPU
> > >>> down entirely to prevent a catastrophic failure.
> > >>>
> > >>>
> > >> I've got Pentium-M at 2GHz and when fully loaded it heats up to 79
> > >> Celsius.  Could it be OK or do I have a faulty laptop ?
> > >>
> > >
> > > My Pentium-M 2GHz system will get well above 80C when doing big builds
> > > and this is well below the defined PSV (94.5C) and CRT (99C)
> > > levels. These things can run very hot and be perfectly happy.
> > >
> > > OTOH, it might be time to clean the heatsink in the machine. That can
> > > hurt heat transfer as a machine gets older.
> > >
> > > FWIW, the spec on the Pentium-M 2GHZ system is 105C, so CRT at 99 looks
> > > right.
> > >
> >
> > Mine says:
> >
> > hw.acpi.thermal.tz0._PSV: 105.0C
> > hw.acpi.thermal.tz0._CRT: 110.0C
> >
> > This is Asus W1N laptop.
>
> I'm not about to start checking spec sheets for people. They are all
> on-line. I assume that the ASUS W1N is not in the same processor family
> as the Pentium-M 735, but I have no idea what it is. I don't even know
> if it is Intel, AMD or VIA.
>
> Looks like this one might require Kevlar pants if you put it on your
> lap. Ouch! Of course, the external temperature of the unit will never
> approach these temperatures.

You are kindly forgetting about the recent battery incidents. ;)

C.