Dell Latitude LS / FreeBSD 6.1 - overheated, shuts down

[Jan Stary]

Hi list,

recently, my Dell LS running 6.1 shut down, saying
"system temperature too high, shutting down soon!"

Not much was happening in the machine that time.
This never even happened with make buildworld or
JDK compilation on a summer noon. Now, ACPI reports
temperatures such as 248C.

Is this possible at all? It's a PIII/400 Mhz.

The reslut is is that *sometimes* I cćn get to boot fully,
but the message appears n about two minutes of uptime
and the machione shuts down forsibly.

Or it "stops" during the boot, suspending (when I press
the ON button again, it follows from where it stops).

So, what really happened? Did my fan break, so that it is not cooling
the CPU properly? When I take the kbd away and see the inside while
booting, the fan seems to be running OK?

Or did my ACPI go crazy and thinks (wrongly) that the temperature
is so high, forcing fbsd to shut down?

	Thanks gor any hints

		Jan