From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Date: Sat, 28 Apr 2012 19:30:23 +0000 Subject: Re: [lm-sensors] sensor 3.3.1 and previous do not properly detect/show CPUTIN temperature - maximus Message-Id: <20120428193023.GB24926@ericsson.com> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: lm-sensors@vger.kernel.org On Sat, Apr 28, 2012 at 03:04:51PM -0400, Martin Suchanek wrote: >=20 >=20 > On Sat, Apr 28, 2012 at 4:36 PM, Guenter Roeck > wrote: >=20 > On Sat, Apr 28, 2012 at 06:08:23AM -0400, Martin Suchanek wrote: > > > > > > On Sat, Apr 28, 2012 at 5:30 AM, Guenter Roeck < > guenter.roeck@ericsson.com> > > wrote: > > > > =A0 =A0 On Fri, Apr 20, 2012 at 11:47:47AM +0100, Martin Suchanek w= rote: > > =A0 =A0 > Hi, > > =A0 =A0 > > > =A0 =A0 > Add info: > > =A0 =A0 > I have found software called open hardware monitor. I hav= e been > testing > > =A0 =A0 it > > =A0 =A0 > in windows for couple of days and it works properly with = Nuvoton > NST6776F > > =A0 =A0 > chip. I have been comparing results with AI Suite softwar= e coming > from > > =A0 =A0 ASUS > > =A0 =A0 > and results are corresponding and measuring is with big p= recise. So > , you > > =A0 =A0 > can have a look to source code and compare with your driv= er. This > > =A0 =A0 software > > =A0 =A0 > should work on linux as well but I did not try it yet but= I will. > > =A0 =A0 > > > =A0 =A0 I finally had time to look into the open hardware monitor c= ode. > > > > =A0 =A0 The answer is quite simple - the board get the CPU temperat= ure using > PECI, > > =A0 =A0 which the w83627ehf/nct67765 driver reports is as "PECI Age= nt 0". > > =A0 =A0 Open Hardware Monitor maps that temperature into the CPU te= mperature > > =A0 =A0 display > > =A0 =A0 and ignores CPUTIN. Which makes sense, since the purpose of= PECI is > to > > =A0 =A0 report > > =A0 =A0 the CPU temperature. > > > > =A0 =A0 So all you need to do is to ignore the value of CPUTIN and = use the > "PECI > > =A0 =A0 Agent 0" > > =A0 =A0 temperature instead. > > > > > > > > I am now confused ? > > I do not know technical details but according to ASUS technical sup= port > > CPUTIN is temperature of motherboard (not cpu socket , not cpu your= self ) > > what exactly this temperature means ? > > > From looking into the OHM source, motherboard temperature is SYSTIN, = not > CPUTIN. > Some but not all boards have AUXTIN connected as well. CPUTIN does no= t seem > to be used at all on ASUS boards as far as I can see. >=20 >=20 >=20 > I am sorry but when I compare my AI Suite monitor (I attached picture) (-= 60 > Celsius)=A0 with psensor ( - 60 Celsius) =3D> CPUTIN correspond with moth= erboard > temperature and technical support saying the same thing (even if I have to > admit that according to name convention it should be as you said). And AU= XTIN > has asus motherboard maximus iv extreme - psensor is showing 33.5 Celsius= - no > problem with that. Judging from the OHM source, it looks like some Asus boards have AUXTIN con= nected, others don't. -60 degrees C suggests that there is nothing connected to the= sensor pin. > where did you get exactly those information about what is what ? Could yo= u put > some URL or documentation ? Open Hardware Monitor source code, http://open-hardware-monitor.googlecode.= com/svn. I don't see CPUTIN on your screen shot. I only see "CPU" and "CPU socket", = but I don't see anything suggesting that those report the temperature as measured on the CP= UTIN pin of the NCT6776F. To know how the values reported by the AI suite map to boa= rd sensors, it would be necessary to see its source code and/or configuration files. Guenter _______________________________________________ lm-sensors mailing list lm-sensors@lm-sensors.org http://lists.lm-sensors.org/mailman/listinfo/lm-sensors