From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Date: Sun, 08 Sep 2013 21:40:39 +0000 Subject: Re: [lm-sensors] Whats wrong with LM-Sensors Message-Id: <522CEED7.30203@roeck-us.net> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lm-sensors@vger.kernel.org On 09/08/2013 02:27 PM, Tomas Larsson wrote: >> -----Original Message----- >> From: Guenter Roeck [mailto:linux@roeck-us.net] >> Sent: Sunday, September 08, 2013 11:20 PM >> To: Tomas Larsson >> Cc: 'Jean Delvare'; lm-sensors@lm-sensors.org >> Subject: Re: [lm-sensors] Whats wrong with LM-Sensors >> >> On 09/08/2013 01:01 PM, Tomas Larsson wrote: >>>> -----Original Message----- >>>> From: Jean Delvare [mailto:khali@linux-fr.org] >>>> Sent: Sunday, September 08, 2013 9:10 PM >>>> To: Guenter Roeck >>>> Cc: Tomas Larsson; lm-sensors@lm-sensors.org >>>> Subject: Re: [lm-sensors] Whats wrong with LM-Sensors >>>> >>>> On Sun, 08 Sep 2013 11:58:39 -0700, Guenter Roeck wrote: >>>>> Different driver. Centos 6.4 uses the coretemp driver which gets the >>>>> temperature from the CPU directly. Unfortunately, Centos 6.4 is >>>>> quite old when it comes to kernel version, and so is its coretemp > driver. >>>>> The displayed temperatures in your version are all wrong; the >>>>> maximum >>>> temperature for Atom 330 is 125 degrees C, not 90 degrees C. >>>>> You'll have to add 35 degrees C to the displayed temperature. >>>>> >>>>> You could either update the coretemp driver to a later version to >>>>> fix this, or add the offset to /etc/sensors3.conf. >>>>> >>>>> Note that CPU temperatures are notoriously unreliable. >>>> >>>> "Inaccurate in the low temperature range" is a better way to describe >>>> the situation IMHO. The coretemp values are reliably telling the user >>>> when the temperature gets too close to the high limit. >>>> >>>> -- >>>> Jean Delvare >>> >>> Well, I'm aware of that, what I want to know is when the fan fails, >>> these 40mm fans are not that reliable, unfortunately. >> >> Not sure if you can use the cpu temperature to predict if the fans are > working >> or not. The CPU can get pretty hot under load, even with the fans working. >> >> Your initial e-mail showed the fan speeds as 0. Are they broken or turned > off >> or not connected to the fan speed sensors ? >> >> Guenter > > Haven't got a clue why it says that they are 0, they definitely work now > (changed the fans today), > They are 3-pins and connected to the correct header. > Do you get a non-zero speed reported after replacing the fans ? If the reported speed is still 0, I am not sure I understand what is going on. Guenter _______________________________________________ lm-sensors mailing list lm-sensors@lm-sensors.org http://lists.lm-sensors.org/mailman/listinfo/lm-sensors