Fan constantly ON on a Dell Latitude E5400

[S�stien Hinderer <Sebastien.Hinderer@ens-lyon.org>]

Dear all,

A debian unstable has been installed on the above mentionned machine.
The system is used in text mode (no X server) and with very few
applications running (a few shells, an editor, a mail user agent..).
However, the fan is constantly turned on, although the temperature of
the processor reported by acpi remains around 30 degrees C.

Is this behaviour of the fan "normal", or does it prove that something
is wrongly configured or not working properly ?

Any help warmly appreciated.
Kind regards,
Sebastien.