From mboxrd@z Thu Jan 1 00:00:00 1970 From: Philipp Kraus Date: Sat, 30 Jun 2012 14:06:39 +0000 Subject: Re: [lm-sensors] CPU fan with full speed Message-Id: 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 2012-06-30 15:41:06 +0200, Guenter Roeck said: > On Sat, Jun 30, 2012 at 07:52:06AM +0200, Philipp Kraus wrote: >> Hello, >> >> I'm using on a dual xeon system lmsensors and pwmconfig for listing >> and controlling the fan speed. >> Lmsensors is configurated and checks the temperature of the CPUs, >> but the fans rotate every time with >> full speed: >> >> CPU1 Fan: 5555 RPM (min = 2000 RPM) >> CPU2 Fan: 5895 RPM (min = 2000 RPM) >> >> CPU 1 Temp: +50.0 C (high = +75.0 C, hyst = +60.0 C) sensor = Intel PECI >> CPU 2 Temp: +53.0 C (high = +75.0 C, hyst = +60.0 C) sensor = Intel PECI >> >> On booting up the fans have got around 2000 RPMs but some minuts the >> system speeds up on idle status >> Can you help me please to configure the options correctly, that the >> RPMs are only gown up if needed? >> > Hi Phil, > > imagine you are an expert in the area. Then imagine someone sends you this > e-mail. Do you think you would be able to help based on the information in the > e-mail ? > > Or, in other words, please provide sufficient information for people to > actually > be able to help. Kernel version, lm-sensors version, complete sensors command > output, and all relevant configuration (including pwm configuration) would be > a start. Sorry my mistake, I have forgot to past the full data (it was a little bit early on this morning and I was tired): kernel version 3.2.11 lm sensors 3.3.1 Gentoo Linux 64 Bit pmwconfig found this devices hwmon0/device is i5k_amb hwmon1/device is w83793 which are also used on lm sensors. The sensors config has stored only the min/max values (the min values on the CPUs are set to 2000 RPM), labels and some ignore values Only the two kernel modules are build CONFIG_SENSORS_I5K_AMB=m CONFIG_SENSORS_W83793=m all other are disabled I hope this additional kernel modules are helpful: CONFIG_THERMAL=m CONFIG_THERMAL_HWMON=y CONFIG_X86_THERMAL_VECTOR=y CONFIG_ACPI_THERMAL=m I don't know which option can be modifies to change this settings and where I can start my search to find the problem. If I boot up the system the CPU fans do some "pulse", so the speed rises up and slows down, rise up, ....... If I run only once sensors the pulse is gone away, but the RPM increses Thanks Phil _______________________________________________ lm-sensors mailing list lm-sensors@lm-sensors.org http://lists.lm-sensors.org/mailman/listinfo/lm-sensors