hi The module is loaded at boottime (from /etc/modules), so i don't think sensors -s causes the spinup. Also, after the module is loaded, the fan speed doesn't go down anymore, even when i unload it87.o! There are three temperature sensors on board, all of the thermistor type, so i use temp_type=0x38. I've tried the default too, and i've tried reloading the module with all the other possible flags. None made the speed go down. the output of 'sensors' is as follows: (with temp_type=0x38) it87-i2c-1-2d Adapter: SMBus nForce2 adapter at 5100 Algorithm: Non-I2C SMBus adapter VCore 1: +1.64 V (min = +1.53 V, max = +1.87 V) VCore 2: +1.50 V (min = +2.25 V, max = +2.75 V) ALARM +3.3V: +3.36 V (min = +1.48 V, max = +1.80 V) ALARM +5V: +5.11 V (min = +4.50 V, max = +5.48 V) +12V: +11.44 V (min = +11.36 V, max = +13.80 V) ALARM -12V: -21.15 V (min = -15.86 V, max = -13.40 V) ALARM -5V: -6.45 V (min = -10.13 V, max = -9.44 V) ALARM Stdby: +5.11 V (min = +4.50 V, max = +5.48 V) VBat: +3.21 V fan1: 5192 RPM (min = 3000 RPM, div = 2) fan3: 3648 RPM (min = 3000 RPM, div = 2) Temp1/MB: +37?C (min = +20?C, max = +60?C) Temp2/CPU: +40?C (min = +20?C, max = +60?C) Temp3: +38?C (min = +20?C, max = +60?C) For some reason sensors says the minimum fan speed is 3000, even though i specified 1400 in /etc/sensors.conf i hope this info helps, Joost On Saturday 16 August 2003 14:20, you wrote: > > I've got a small bugreport for the it87 driver. > > The driver loads fine, and i get normal readings afterwards, but as > > soon as the driver loads, my cpu fan gears up to it's maximum rpm, > > even though the temperature is still low enough. > > > > I have a shuttle sn41g2 pc, with the nforce2 chipset. The board > > supports variable fan speeds, it monitors cpu temperature, and sets > > fan speed accordingly. Up to the point where i load the it87 module > > that is :) > > > > I'm running kernel 2.4.20, i2c and lm-sensors version 2.8.0 > > bios version fn41s019. Should you need more info just ask. > > Does the fan keep a high speed for always, or does is goes down after > some times? > > Does the "sensors" program report any alarm? (a "cat" on the alarms file > could help too) > > Can you confirm the fan speedup is caused by loading the driver, and not > by running "sensors -s"? (Many scripts will do both in a row.) > > Does using the temp_type parameter with various values (read > doc/chips/it87) have any influence (except giving very bad temperatures) > on the fan speed?