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Date:      25 Jan 2014 03:15:36 -0000
From:      "John Levine" <johnl@iecc.com>
To:        freebsd-questions@freebsd.org
Cc:        erichsfreebsdlist@alogt.com
Subject:   Re: coretemp0: critical temperature detected, suggest system shutdown
Message-ID:  <20140125031536.84872.qmail@joyce.lan>
In-Reply-To: <20140125101955.1651160f@X220.alogt.com>

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>the problem is that the temperatures did not change. Only the message
>appeared. The idle machine is still around 50 to 60 and a loaded
>machine is still 96, all in Celsius. As I live in the tropics, these
>temperatures are perfectly normal.

I expect that the thermocouple that measures the temperature has aged
and is reporting higher temperatures.  Before assuming that, I would
check that you don't have dust clogging the vents or otherwise
impaired airflow.

Look at the man page for acpi_thermal to change the temperature
warnings.

My laptop was shutting down from overtemperature until I realized that
I had placed it next to something that was blocking the fan vent.

R's,
John




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