From owner-freebsd-current@FreeBSD.ORG Tue Dec 22 07:42:27 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 05A031065670 for ; Tue, 22 Dec 2009 07:42:27 +0000 (UTC) (envelope-from anti_spam256@yahoo.ca) Received: from n7.bullet.mail.ac4.yahoo.com (n7.bullet.mail.ac4.yahoo.com [76.13.13.235]) by mx1.freebsd.org (Postfix) with SMTP id 9B5898FC18 for ; Tue, 22 Dec 2009 07:42:26 +0000 (UTC) Received: from [76.13.13.26] by n7.bullet.mail.ac4.yahoo.com with NNFMP; 22 Dec 2009 07:29:44 -0000 Received: from [76.13.10.173] by t3.bullet.mail.ac4.yahoo.com with NNFMP; 22 Dec 2009 07:29:44 -0000 Received: from [127.0.0.1] by omp114.mail.ac4.yahoo.com with NNFMP; 22 Dec 2009 07:29:44 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 507641.96905.bm@omp114.mail.ac4.yahoo.com Received: (qmail 85987 invoked by uid 60001); 22 Dec 2009 07:29:44 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.ca; s=s1024; t=1261466984; bh=yvsplIQpkKb2Gv4XlLbMMHvez/lxJW8Au2TaHchMlkc=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=3o35ySY1SuXA3HhftsHcjZjtSqHqx1FdoEyN3zf2Vwj3+AGW0b4/7avAN5B5emeGYS4uXA2x+xzdOeVUxcPfoITflYXiz3XP/iZRnH2WLbL722ZX5ZxGow7w8clH/cD4S68q5Hayn06epXaLqmcQhFWemy9Dl+2KAP030x0VdR8= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.ca; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=noutjDn+zUsyQD+/DNq2oSuxg7rkERD4ZfH/NnEjS6si27d9Zjk32rLLOXaFT6Xdel6CRHkcVtXqCgde9N3kYL7R2/NtxVYNUpUJwvmrEN0863qY4AOvaNRLagKuFLbgeb2hKH/xzI7xFGSAqUQvPLyhW1EJF2U0bK87FIF2Qhg=; Message-ID: <296806.84549.qm@web65508.mail.ac4.yahoo.com> X-YMail-OSG: Gj_P.yAVM1mU9a5C8V4oru3Yf56Fh.KM43Ob.8Tnkapk6yT79t0aEAQSMtSS7dHlZFzs1uTXmkbvRoD9HKUd0EpcPb2LO8RcvP.rhlaGxw4wtQa.hkdsx6z2QEqsA2pIPrb1QnOLxYWZlJm30r0FwNEpjQyXmRJp73.fF8vbiMbVaX0FipJBz_UGYhFPU5Ke._7cYLA9PZuZFK.G02q5SE86yvn8.DMlDW9faoXdW5fnECOUsiPYBkvD.rR6xT4qBIantkN7FUz9KXNpPqKDTKKYJxl.Q1lA3ITQ2FJSs50XzS9zQi9NSiJ_17dq6RXXstkIRfRSUv9zQmgM5n_2tbGmlRmMWb_U3UkEkcjHFpcPW3PU2LMCU4isU1G7bZlbTGabO9ao8XxUW4nImhJVRwilfKrOVxqALlmi Received: from [208.99.137.71] by web65508.mail.ac4.yahoo.com via HTTP; Mon, 21 Dec 2009 23:29:43 PST X-Mailer: YahooMailClassic/9.0.19 YahooMailWebService/0.8.100.260964 Date: Mon, 21 Dec 2009 23:29:43 -0800 (PST) From: James Phillips To: freebsd-current@freebsd.org In-Reply-To: <20091221215204.AC4EC1065818@hub.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Subject: Re: Systems running hot? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Dec 2009 07:42:27 -0000 =0A=0A> Date: Mon, 21 Dec 2009 13:26:26 +0100=0A> From: Dag-Erling Sm?rgrav= =0A> Subject: Re: Systems running hot?=0A> To: Doug Barton =0A> Cc: freebsd-current@freebsd.org=0A> Message-ID: <861vi= osebx.fsf@ds4.des.no>=0A> Content-Type: text/plain; charset=3Dutf-8=0A> =0A= > Doug Barton =0A> writes:=0A> > In the last weeks (I ge= nerally update to the latest=0A> HEAD daily) It=0A> > seems that my -curren= t laptop is running hot=0A> temperature wise, even=0A> > when it's idle, or= nearly so. The temperature sensor=0A> (via wmbsdbatt)=0A> > generally stay= s in the 80s C, as opposed to the 70s,=0A> and the fan is=0A> > regularly o= n its "medium" speed as opposed to the low=0A> speed.=0A=0AAs far as I can = gather, Intel considers the relationship between sensor readings and actual= temperatures a trade secret. You have to take those numbers with a grain o= f salt.=0A=0AIf you look at the Hardware monitoring screen in the BIOS you = may notice the temperature readings are unitless. I don't think that is an = accident, though they roughly correspond to Celsius temperatures.=0A=0AFor = a DG31PR based desktop (latest (0068) BIOS revision) I recently observed a = cold boot CPU temp starting at 24 and climbing to 30 before I got bored. Th= e reported system temperature went from 65534 -> 65535 -> 0 -> ... -> 4 bef= ore I got bored. Temperature probe in case rose from 295K -> 304K (+-1% ~ 2= 2C -> 31 C)(not all measurement guaranteed to be simultaneous)=0A=0A> =0A> = The maximum operating temperature for a Core 2 Duo is 75=0A> C.=A0 The idle= =0A=0ATrue, but ACPI reporting 80C does not make it so.=0A=0ARegards,=0A=0A= James Phillips=0A=0A=0A=0A=0A ________________________________________= __________________________=0AYahoo! Canada Toolbar: Search from anywhere on= the web, and bookmark your favourite sites. Download it now=0Ahttp://ca.to= olbar.yahoo.com.