From owner-freebsd-questions@FreeBSD.ORG Thu Feb 15 20:24:41 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id A176F16A406 for ; Thu, 15 Feb 2007 20:24:41 +0000 (UTC) (envelope-from toreld@netscape.net) Received: from mail49.e.nsc.no (mail49.e.nsc.no [193.213.115.49]) by mx1.freebsd.org (Postfix) with ESMTP id 1E64413C442 for ; Thu, 15 Feb 2007 20:24:40 +0000 (UTC) (envelope-from toreld@netscape.net) Received: from [84.202.101.80] (084202101080.customer.alfanett.no [84.202.101.80]) (authenticated bits=0) by mail49.nsc.no (8.13.8/8.13.5) with ESMTP id l1FKOcTi026397 for ; Thu, 15 Feb 2007 21:24:39 +0100 (CET) Message-ID: <45D4C164.9090700@netscape.net> Date: Thu, 15 Feb 2007 21:24:04 +0100 From: Tore Lund User-Agent: Thunderbird 1.5.0.9 (X11/20061228) MIME-Version: 1.0 CC: freebsd-questions@freebsd.org References: <20070215171950.GA16214@panix.com> In-Reply-To: <20070215171950.GA16214@panix.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: Diagnosing fan problem X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Feb 2007 20:24:41 -0000 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