From owner-freebsd-questions@FreeBSD.ORG Mon Mar 31 17:51:14 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id AD5CB3B6 for ; Mon, 31 Mar 2014 17:51:14 +0000 (UTC) Received: from mail-pd0-x231.google.com (mail-pd0-x231.google.com [IPv6:2607:f8b0:400e:c02::231]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 87023F0B for ; Mon, 31 Mar 2014 17:51:14 +0000 (UTC) Received: by mail-pd0-f177.google.com with SMTP id y10so8293889pdj.36 for ; Mon, 31 Mar 2014 10:51:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=m4eVk2vN3gxoUiGGHtfsS1Gdmvk+AIf+Hu0bfuQ/PXA=; b=NQ/K2WBe3ugiL4Lkx22Lauw5L5unBp6RYfRxkcVtQbkR7jxgRu/DqdguKShwPK6D6N km9EkSDfwi0cSQ1ncYvIGag9/BChNiDoTnjDA9MOxfhjufU48k01ERsyRchw0oQ4/NKL 7V9S8oGWAR+jEpUQy1PzGhrR05doJuuJtymYVAKxagx0bvmEPLr+JawlvLf5oeDa47eg 4bUNxqrMLMneTntJhoG7ma5ByhOR3v1gGUSNQHoK+FCOt6W+OZMXexfgbB95UUvuT1/V uf1CH4cJmtxyu5rbnxj+6Bb3qNVayiTtnjy+BSMvWJaXmDrUB0i5kuPz/Nf3s42UDFxI AGOQ== MIME-Version: 1.0 X-Received: by 10.68.239.137 with SMTP id vs9mr26809369pbc.84.1396288274122; Mon, 31 Mar 2014 10:51:14 -0700 (PDT) Received: by 10.70.4.5 with HTTP; Mon, 31 Mar 2014 10:51:14 -0700 (PDT) In-Reply-To: References: Date: Mon, 31 Mar 2014 19:51:14 +0200 Message-ID: Subject: Re: CPU Overheating? From: Zsolt Udvari To: Walter Hurry Content-Type: text/plain; charset=ISO-8859-1 Cc: "freebsd-questions@freebsd.org" X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Mar 2014 17:51:14 -0000 I've similar problem. I've AMD Athlon X2 Dual-Core QL-65. I'm using sysutils/gather to log my system in every minute. In the latest entries I can't find anything strange. On my laptop the CPU's temperature is 70-80C and this is normal as I see on web. While compiling it increases to 82-85C and nothing any problem. As I inspected it's independent to any cpu usage. In most case it shuts off when the LID is closed (not all case!). The fan is working but no reactions. I can't ping and can't ssh from another machine. Should power off and power on again. Zsolt 2014-03-31 2:11 GMT+02:00 Walter Hurry : > I have a bog-standard Acer laptop with FreeBSD 9.2 (amd64). > > CPU is AMD Athlon(tm) 64 X2 Dual-Core Processor TK-42 (1596.09-MHz K8-class CPU) per dmsg. > > From time to time, it shuts off without warning, as if the power cable has been pulled out. Nothing in any of the logs, and when I power up again it starts normally after replaying the journal. > > The shut-off is invariably when it is doing a compile of a big port. I therefore suspect that the CPU is overheating and that the BIOS is causing the shutdown. > > To investigate the problem, I have done a 'kldload coretemp' and am periodically running: > 'sysctl hw.acpi.thermal.tz0.temperature'. So far (only 6 runs) this is reporting temperatures between 76C and 84C. > > Question 1: Is this the canonical way to monitor CPU temperature? > Question 2: Is this too hot? > Question 3: I plan to load the module in /boot/loader.conf and set up a cron job to run every minute and log the result to a file. Is this sensible, or overkill? > > Thanks. > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"