Date: Thu, 15 Feb 2007 21:24:04 +0100 From: Tore Lund <toreld@netscape.net> Cc: freebsd-questions@freebsd.org Subject: Re: Diagnosing fan problem Message-ID: <45D4C164.9090700@netscape.net> In-Reply-To: <20070215171950.GA16214@panix.com> References: <20070215171950.GA16214@panix.com>
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Jesse Sheidlower 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.
There are quite a few programs that can tell you CPU temperature and fan
speed, like mbmon and conky, both in /usr/ports/sysutils. You could
compare these parameters against data for the fan and cooler in order to
ascertain whether anything is wrong with the fan.
> Can I control the fan?
I don't know. In any case, I would not try to control fan speed if the
problem is that the fan is insufficient or out of order.
--
Tore
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