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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: Matthias Apitz <guru@unixarea.de>
References: <4B2D4B53.1060503@FreeBSD.org> <861viosebx.fsf@ds4.des.no>
	<20091221123912.GB3253@current.Sisis.de>
Date: Mon, 21 Dec 2009 14:08:11 +0100
In-Reply-To: <20091221123912.GB3253@current.Sisis.de> (Matthias Apitz's
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Cc: freebsd-current@freebsd.org
Subject: Re: Systems running hot?
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Matthias Apitz <guru@unixarea.de> writes:
> I'm running a Dell M4400 with dual-core CPU and an older 8-CURRENT:
> $ uname -a
> FreeBSD current.Sisis.de 8.0-CURRENT FreeBSD 8.0-CURRENT #1: Thu May 28
> 14:40:45 CEST 2009     guru@current:/usr/obj/usr/src/sys/GENERIC  i386
> $ sysctl -a | fgrep thermal
> hw.acpi.thermal.min_runtime: 0
> hw.acpi.thermal.polling_rate: 10
> hw.acpi.thermal.user_override: 0
> hw.acpi.thermal.tz0.temperature: 68,5C
> hw.acpi.thermal.tz0.active: -1
> hw.acpi.thermal.tz0.passive_cooling: 0
> hw.acpi.thermal.tz0.thermal_flags: 0
> hw.acpi.thermal.tz0._PSV: -1
> hw.acpi.thermal.tz0._HOT: -1
> hw.acpi.thermal.tz0._CRT: 107,0C
> hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
> hw.acpi.thermal.tz0._TC1: -1
> hw.acpi.thermal.tz0._TC2: -1
> hw.acpi.thermal.tz0._TSP: -1
>
> the actual 68,5C is with KDE up, but nearly idle system; what does=20
> hw.acpi.thermal.tz0._CRT: 107,0C mean?

These are motherboard temperatures, not CPU temperatures.

CRT means "critical", i.e. the point at which the system will either
start to malfunction or shut down to protect itself.

It seems very high; if the inside of the case is really that hot, the
CPU has nowhere to evacuate heat.

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no