Date: Tue, 22 Dec 2009 17:22:31 -0800 (PST) From: James Phillips <anti_spam256@yahoo.ca> To: freebsd-current@freebsd.org Subject: Re: Systems running hot? Message-ID: <576433.27739.qm@web65503.mail.ac4.yahoo.com>
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=0A=0A--- On Tue, 12/22/09, James Phillips <anti_spam256@yahoo.ca> wrote:= =0A=0A> From: James Phillips <anti_spam256@yahoo.ca>=0A> Subject: Re: Syste= ms running hot?=0A> To: "Dag-Erling Sm=F8rgrav" <des@des.no>=0A> Received: = Tuesday, December 22, 2009, 6:21 PM=0A> =0A> =0A> --- On Tue, 12/22/09, Dag= -Erling Sm=F8rgrav <des@des.no> wrote:=0A> =0A> > From: Dag-Erling Sm=F8rgr= av <des@des.no>=0A> > Subject: Re: Systems running hot?=0A> > To: "James Ph= illips" <anti_spam256@yahoo.ca>=0A> > Cc: freebsd-current@freebsd.org=0A> >= Received: Tuesday, December 22, 2009, 5:30 AM=0A> > =0A> > Well, Those Of = Us [tm] who actually read the docs and=0A> wrote=0A> > the driver=0A> > kno= w that the temperature is reported by the CPU=0A> itself as=0A> > a 6-bit= =0A> > number which represents degrees Celsius below the=0A> junction=0A> >= temperature.=0A> =0A> Thank-you for the clarification. That does indeed ma= tch my=0A> experience (but I never trusted the number because the CPU=0A> f= an does not spin up to full speed even when the CPU is at=0A> its maximum r= ated (case) temperature). It is the "Core" CPU=0A> temperatures that are ma= de-up:=0A> =0A> "The reported CPU core temperatures are not comparable=0A> = across BIOS revisions. The (reported) core temperatures=0A> averaged about = 77C for the 0052 version, about 88C for the=0A> 0059 revision, about 64-68C= for the 0065 revision, and about=0A> 86-88C for the the 066 revision. For = the 0068 revision the=0A> reported avg. core temps were 83-85C (All under t= he same=0A> Prime95 load.)"=0A> =0A> "Call For testing" - wall of text desc= ribing my=0A> frustrations with the Cooling of an Intel Board.=0A> http://f= orums.xkcd.com/viewtopic.php?f=3D36&t=3D32700&p=3D1615440#p1615440=0A> =0A>= > I have no idea where your 65534 came from, but it=0A> certainly=0A> > di= dn't come=0A> > from the CPU.=A0 It may have come from an i2c probe=0A> > m= ounted on the=0A> > motherboard, possibly somewhere near the CPU, or maybe= =0A> the=0A> > BIOS made it=0A> > up out of thin air, or maybe you were act= ually reading=0A> the=0A> > clock, not=0A> > the temperature.=0A> > =0A> = =0A> The BIOS does indeed pull the number out of it's *ss. It is=0A> a comp= osite number formed from about 3 different sensors on=0A> the motherboard.= =0A> =0A> Regards,=0A> =0A> James Phillips=0A> =0A> =0A> =0A> =A0 =A0 =A0= =0A=0A=0A=0A _________________________________________________________= _________=0ABe smarter than spam. See how smart SpamGuard is at giving junk= email the boot with the All-new Yahoo! Mail. Click on Options in Mail and= switch to New Mail today or register for free at http://mail.yahoo.ca
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