From owner-freebsd-questions@FreeBSD.ORG Tue Apr 2 09:25:39 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id A5BB5244 for ; Tue, 2 Apr 2013 09:25:39 +0000 (UTC) (envelope-from jrisom@gmail.com) Received: from mail-ye0-f179.google.com (mail-ye0-f179.google.com [209.85.213.179]) by mx1.freebsd.org (Postfix) with ESMTP id 6E24F312 for ; Tue, 2 Apr 2013 09:25:39 +0000 (UTC) Received: by mail-ye0-f179.google.com with SMTP id q7so18033yen.10 for ; Tue, 02 Apr 2013 02:25:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:message-id:date:from:user-agent:mime-version:to:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=Ef5utGFxbhkVC+bhXPevNiMmx/f4Nj/ftUYOzoYsAsY=; b=RJKpYRd624cXgSwTO3w6qw/lYBFZdchPTs5xs5osfH668renl7VhyR+tDiMudcWoQS RWaZH5x9h2k3jt+l4Sg4omK454jmLvOQxY+ilBn7Jj2P5vkWQyPO3xrfe5IJGbijZL20 4kZiUthHjRWqiPtaZsa61loghHc7omt1YPUK8MKvRbC6S8A5GzYCSV9ngQvc0aD3b+h8 4Du4bgeZi0jUt83fySfH8TXsCVG48vDEp7iLC8k6cYBu4/0Zo/DPElTrI0X/YwQN/pHQ o71dnc9WepowipJIyAwubmT08WTFvRM2HciDns/EY4cK+5E8m655nEv6F9Xv9R4nNhT6 N5LQ== X-Received: by 10.236.124.200 with SMTP id x48mr13630906yhh.180.1364894357173; Tue, 02 Apr 2013 02:19:17 -0700 (PDT) Received: from [192.168.1.34] (c-98-212-197-211.hsd1.il.comcast.net. [98.212.197.211]) by mx.google.com with ESMTPS id o64sm1557695yhd.16.2013.04.02.02.19.16 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 02 Apr 2013 02:19:16 -0700 (PDT) Message-ID: <515AA28D.5080903@gmail.com> Date: Tue, 02 Apr 2013 04:19:09 -0500 From: Joshua Isom User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20130307 Thunderbird/17.0.4 MIME-Version: 1.0 To: freebsd-questions@freebsd.org Subject: Re: Recipie for CPU souffle' References: <8363.1364871722@server1.tristatelogic.com> In-Reply-To: <8363.1364871722@server1.tristatelogic.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Apr 2013 09:25:39 -0000 On 4/1/2013 10:02 PM, Ronald F. Guilmette wrote: > > [[ Mostly, this posting is just a story. But it does include one > question, towards the end. See below. ]] > > Well, I accidentally found what I believe is most likely the reason > for the system halts I have been having recently, so I just thought > that I would share that. It _is_ a bit humorous. (The mystery system > shutdowns have _not_ been due to a power issue, it would appear.) > > I just now experienced another episode in which the machine powered > itself off, as I was working on it, for no apparently good reason. > > Since it was down anyway, I decided that this would be a good time to > pull out that *&^%$#@ bleedin' new USB 3.0 PCIe card I had recently > installed... just in case that was causing the problem. > > As I reached in to begin extracting the PCIe card, the tip of one of > my fingers accidentally brushed up against my CPU heatsink. I in- > stinctively yanked it away immediately. If I had not done so, I > would probably have gotten a third degree burn. > > I left the system off for a couple of minutes after that... to let it > cool down a bit before doing anything else... and then I powered it > back on, checked that the CPU fan was indeed turning (it was) and then > I went immediately to the BIOS and the PC Heath Status. > > The CPU temperature was listed as being 63c == 145f !!! And this was > _after_ I had allowed the system to be powered down for a couple of > minutes to cool down!!! > > So anyway, the fan turned and I watched the CPU temp slowly inch down > to something more normal... like in the vicinity of 24c. > > I don't know what to make of this, except to suspect that some loose > wires inside my case got in the way of the CPU fan turning. (I am > not neat like some folks. The inside of myu case _is_ really rather > sloppy, so this could easly have happened.) > > I've now installed mbmon and xmbmon and will be watching the CPU temp > closely for awhile. > > I really wish that one or the other of those tools allowed setting a > threshold CPU temp, beyond which the tool would emit an ear piercing > alarm via the motherboard speaker... you know.. in case the regular > external stereo speakers are turned off. > > > What *is* the best way to achieve the above effect, i.e. to arrange > for the machine to scream for help in case it is getting too hot? > > I don't want it to just die, like it is doing now. I want it to scream > so that I can rush over and at least try to do an orderly shutdown. > > > > > Regards, > rfg > > > P.S. I am loading the system pretty heavily now, and have been for the > last 20+ minutes, and xmbmon is showing me a nice constant 31c for the > CPU temp. So for the moment at least, all is well. > > P.P.S. I have a (relatively) monster sized heatsink in this system, and > it sits atop a quite modest 2.7GHz single-core Athlon, so it is not at > all surprising that the ``stable'' CPU temp is around 30c (86f). Use stress in ports. I recently had to fix two computers at work(and I'm not IT) due to overheating. One had the fan start to go bad. The automatic thermal control would turn the fan on and off for silence. Sometimes it wouldn't kick back on when under load. I changed the bios to always on, and it worked. Another had the thermal paste so dry, it insulated the processor. Both were pentium 4's. We don't get the good computers.