From owner-freebsd-questions@FreeBSD.ORG Mon Jul 21 15:18:05 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 66BCD1065674 for ; Mon, 21 Jul 2008 15:18:05 +0000 (UTC) (envelope-from sonic2000gr@gmail.com) Received: from mu-out-0910.google.com (mu-out-0910.google.com [209.85.134.184]) by mx1.freebsd.org (Postfix) with ESMTP id CD56D8FC12 for ; Mon, 21 Jul 2008 15:18:04 +0000 (UTC) (envelope-from sonic2000gr@gmail.com) Received: by mu-out-0910.google.com with SMTP id i2so934311mue.3 for ; Mon, 21 Jul 2008 08:18:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:cc:subject:references:in-reply-to :content-type:content-transfer-encoding; bh=JYrNzV2Q23teocTmZ1AB+kYrNkDGavkdqmoDk5CbxHc=; b=J6Ef9Rz8gbgQRFPVZtrMt/UQVy8sbD5opB+1csCJ0ay5agZF6OQjGkE0CaUkU7EV4d i+ARanPK7r/TMrG/5o7PilKsh+Y8xxMmFoUToaN4fclYICU54W7UsWdONR+lFPeapTMZ 4CupxVSM/UgE5r7ITu3bX6wcTIqonXecd1R2k= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=tyQWmg92U7xH450o7gFIK+BKvOc2MxSGnTSLjTutboq5L6dI/+LFc++uvCDMbbZytT 1FPyz8xM24Jg2t+iGmgJMMGbiLnUIpZPqv4zSK8APVspSoGtT9TXUPq1amf0r/g0hxMf G5NfaFEwfzMDgfpB0BJU6aVugHOnIp8cnCerc= Received: by 10.103.186.14 with SMTP id n14mr2698864mup.40.1216653483248; Mon, 21 Jul 2008 08:18:03 -0700 (PDT) Received: from atlantis.dyndns.org ( [85.73.147.46]) by mx.google.com with ESMTPS id y6sm39178031mug.15.2008.07.21.08.18.01 (version=TLSv1/SSLv3 cipher=RC4-MD5); Mon, 21 Jul 2008 08:18:02 -0700 (PDT) Message-ID: <4884A8A7.3070108@gmail.com> Date: Mon, 21 Jul 2008 18:17:59 +0300 From: Manolis Kiagias User-Agent: Thunderbird 2.0.0.14 (X11/20080703) MIME-Version: 1.0 To: Achilleas Mantzios References: <48849FFD.10285.C71CED5@iwrtech.iwr.ru.ac.za> <200807211656.10874.achill@matrix.gatewaynet.com> In-Reply-To: <200807211656.10874.achill@matrix.gatewaynet.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org, iwrTech@iwr.ru.ac.za Subject: Re: Monitoring CPU temperature: mbmon shows 201 degrees C 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: Mon, 21 Jul 2008 15:18:05 -0000 Achilleas Mantzios wrote: >> My office goes to 38C in summer, and all 5 computers just keep on >> going, using the principles above. I fitted a fan to the UPS as well >> (-: >> >> >> > My box has 3 fans, one on the case blowing from outside=>inside, > one in the power supply and one on the CPU. > > In the evening, i will have the case/board inside blown/cleaned with air, > i am gonna close the case, and i am gonna tune BIOS to fail-safe settings. > > Apart from that, i would like to have a reliable tool to monitor temperature. > Is there anything in mind? > As you already noticed, mbmon is no good in recent hardware. It works successfully in my 865-based systems though. As others have said, I would recommend adding a rear out-take fan. Do not rely on the PSU's fan to take all the warm air out. The PSU generates heat on its own, and the fan may not be sufficient. A rear out-take fan should be located rather high - at CPU height - since warm air always goes up. This is where most cases have a place for the fan anyway. A note for monitoring: If you are using FreeBSD 7.0 and you have an Intel Core CPU, there is a new coretemp(4) driver that can actually read the on-die digital thermal sensor. Have a look at man coretemp