Hi Martin, I will use english so other people might profit from solution. Please dont forget to reply (or just CC) to the lm-sensors address. > Ahoj! > Obraciam sa na VAs s prosbou o pomoc. Mam motherboard MS-6797 a dopatral > som sa, ze FAN senzor je SMSC LPC47M15x. Problem je, ze oba FANy bezia na > maximalne otacky a neviem ich nijako regulovat. Do jadra 2.6.11 som napatchoval > linux-2.6.12-rc3-i2c-smsc47m1-select-pwm-clock.diff > a prekompiloval modul, vyzera to takto: For non native czech or slovaks I will translate. WHen he do PWM enable fans will stop. He uses that patch backported to 2.6.11 to have clock selection sysfs interface. > i2c_isa 1920 0 > smsc47m1 9996 1 > i2c_sensor 3072 1 smsc47m1 > i2c_core 18704 3 i2c_isa,smsc47m1,i2c_sensor > > obraz drivera > > ls -l /sys/bus/i2c/devices/0-0800/ > > -r--r--r-- 1 root root 4096 Jun 10 14:14 alarms > -rw-r--r-- 1 root root 4096 Jun 10 14:13 detach_state > lrwxrwxrwx 1 root root 0 Jun 10 14:13 driver -> > ../../../../bus/i2c/drivers/smsc47m1 > -rw-r--r-- 1 root root 4096 Jun 10 14:14 fan1_div > -rw-r--r-- 1 root root 0 Jun 10 14:20 fan1_input > -rw-r--r-- 1 root root 4096 Jun 10 14:14 fan1_min > -rw-r--r-- 1 root root 4096 Jun 10 14:14 fan2_div > -r--r--r-- 1 root root 4096 Jun 10 14:14 fan2_input > -rw-r--r-- 1 root root 4096 Jun 10 14:14 fan2_min > -r--r--r-- 1 root root 4096 Jun 10 14:14 name > drwxr-xr-x 2 root root 0 Jun 10 14:13 power > -rw-r--r-- 1 root root 0 Jun 10 14:14 pwm1 > -rw-r--r-- 1 root root 0 Jun 10 14:17 pwm1_clock > -rw-r--r-- 1 root root 0 Jun 10 14:21 pwm1_enable > -rw-r--r-- 1 root root 0 Jun 10 14:32 pwm2 > -rw-r--r-- 1 root root 0 Jun 10 14:17 pwm2_clock > -rw-r--r-- 1 root root 0 Jun 10 14:45 pwm2_enable > > > Utilita pwmconfig zlyha, zastavi oba FANy a neviem ich znova nahodit pomocou pwmconfig will fail to get two fans back and this wont help: > echo 1 > pwm1_enable > echo 1 > pwm2_enable > Restartujem stroj aby sa neuprazil procesor. He will restart the machine so the procesor wont die. > Neviete poradit kde by som sa blizsie dopatral k informaciam? Ci sa niekomu > podarilo spravit speed regulaciu a ako merat teplotu CPU na tejto doske? > Nateraz viem zapnut a vypnut FANy. Dakujem. He asks about temperature and other stuff and how to regulate it with temps. Please run sensors-detect command to see what chips you have. Your chip has also a HW monitor block but i think it is not yet supported. And also I think nobody is working on that. If you want to fund or donate the motherboard or write the support by yourself we can discuss it in further emails. And now I will try to write something about the solution. Do t the same without the patch? ( I guess so) What will happen if you do after thay are stopped: echo 0 > pwm1_enable echo 0 > pwm2_enable Will they spin again? (I think you made a mistake in description) Please try with the power off/boot: What will happen when you do: echo 1 > pwm1_enable echo 1 > pwm2_enable echo 255 > pwm1 echo 255 > pwm2 echo 0 > pwm1 echo 0 > pwm2 Will they spin again? If so your fans are polarity inverted so 0 is full speed. If it does not help you can try: To play with the pwm1_clock and pwm2_clock This are valid possibilites: 40, 60, 80, 120, 15625, 23438, 31250, 46876 You can echo them similar way as the values above. I would suggest to pick up some higher frequency to the beginning. I hope this will help. Regards Rudolf
