Diagnosing fan problem

Robert Marella rmarella at gmail.com
Fri Feb 16 19:36:02 UTC 2007

On Thu, 15 Feb 2007 12:19:50 -0500
Jesse Sheidlower <jester at panix.com> wrote:

> I have a ThinkPad T41p that has had a variety of fan problems
> for some time. After my most recent repair things seemed to be
> working fine, but the other day I was compiling some ports and
> the machine just shut down in the middle; after some
> experimentation it seemed clear that it was just overheating
> under load and shutting itself off. (Looking at the
> temperature sysctl showed that it was getting increasingly hot
> until it crashed.)
> How can I monitor what is happening? Are there any ways I can
> find out from FreeBSD if the fan is even on, or how it thinks
> it is working? "systcl -a | grep fan" didn't return anything.
> Can I control the fan?
> I don't want to make yet another warranty call if they're
> gonna say, "It's working fine, it's your OS" or something.
> Thanks.
> Jesse Sheidlower

Aloha Jesse

I know this is not what you are asking but my daughter had a problem
with her laptop overheating and shutting down and this fixed it.


Of course hers was not under any warranty.

I hope this helps.


More information about the freebsd-questions mailing list