Hi Anders, On Sat, 12 Mar 2011 20:25:16 +0100, Anders Kullenberg wrote: > I have extremely high fan reading on my ubuntu 10.10 server installation > (AMD64). Any clues to what could be the reason? > > Asus m2v motherboard > Lm-sensors 3.1.2 kernel 2.6.35-22 > > Sensors output: > atk0110-acpi-0 > Adapter: ACPI interface > Vcore Voltage: +1.14 V (min = +0.85 V, max = +1.60 V) > +3.3 Voltage: +3.31 V (min = +2.97 V, max = +3.63 V) > +5 Voltage: +5.00 V (min = +4.50 V, max = +5.50 V) > +12 Voltage: +11.31 V (min = +10.20 V, max = +13.80 V) > CPU FAN Speed: 18000 RPM (min = 800 RPM) > CHASSIS FAN Speed: 14835 RPM (min = 800 RPM) > CHASSIS2 FAN Speed: 0 RPM (min = 800 RPM) > CPU Temperature: +25.0°C (high = +60.0°C, crit = +95.0°C) > MB Temperature: +35.0°C (high = +45.0°C, crit = +95.0°C) Do you see the same crazy values in the BIOS? I guess so. There can be two reasons: * You are using special fans with more than 2 poles, so they emit more than 2 pulses per revolution. If this is the case, you have to correct the values using compute statements in your configuration file. * You are using potentiometers or a so-called "fanbus" to control the speed of 3-wire fans. These tend to degrade the tachometer signal to a point where monitored values get completely wrong. In this case, you have to increase the speed to get valid readings again. -- Jean Delvare http://khali.linux-fr.org/wishlist.html _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
