[lm-sensors] IT8712F-A and ECS-RX480A mainboard has erradic CPU

[brian@rapsure.net (Brian Beardall)]

On Thu, 2006-06-08 at 08:28 +0200, Jean Delvare wrote:
> Hi Brian,
> 
> > I can't get the cpu temp to read correctly on my ECS-RX480A mainboard.
> > The CPU temperature works correctly in the BIOS screen, but I have been
> > unable to get it to work with lm_sensors regardless of whether I set the
> > sensor type to a 2, or 3. Currently I have one temperature sensor
> > reading correctly, and that is the case temperature. For now I've
> > disabled the other two temperature sensors.
> > 
> > The output of sensors:
> > 
> > it8712-isa-0228
> > Adapter: ISA adapter
> > VCore 1:   +1.34 V  (min =  +1.42 V, max =  +1.57 V)   ALARM
> > VCore 2:   +1.15 V  (min =  +2.40 V, max =  +2.61 V)   ALARM
> > +3.3V:     +5.15 V  (min =  +3.14 V, max =  +3.46 V)   ALARM
> > +5V:       +5.51 V  (min =  +4.76 V, max =  +5.24 V)   ALARM
> > +12V:     +11.90 V  (min = +11.39 V, max = +12.61 V)
> > -12V:      -4.90 V  (min = -12.63 V, max = -11.41 V)   ALARM
> > -5V:       -8.86 V  (min =  -5.26 V, max =  -4.77 V)   ALARM
> > Stdby:     +4.97 V  (min =  +4.76 V, max =  +5.24 V)
> > VBat:      +3.22 V
> > fan1:     3183 RPM  (min =    0 RPM, div = 8)
> > fan2:     1205 RPM  (min = 3013 RPM, div = 8)          ALARM
> > fan3:     1962 RPM  (min = 3013 RPM, div = 8)          ALARM
> > M/B Temp:    +39?C  (low  =   +15?C, high =   +40?C)   sensor = thermistor   ALARM
> > CPU Temp:     +1?C  (low  =   +15?C, high =   +70?C)   sensor = disabled
> > CPU Temp:     -8?C  (low  =   +15?C, high =   +70?C)   sensor = disabled
> > vid:       +1.55 V
> 
> What temperatures were you seeing before disabling temp2 and temp3?
> 
> What temperatures does the BIOS report?
> 
> Could be that you have an additional temperature sensor chip for the
> CPU temperature. Please provide the full output of sensors-detect on
> this machine.
> 
> BTW, most of the values reported by the IT8712F chip above are out of
> range. You should tweak your configuration file to fit your system. For
> example, for fans, you could add the following lines:
> 
>    set fan1_div     4
>    set fan1_min  2400
>    set fan2_min   800
>    set fan3_min  1400
> 
> After running "sensors -s" then "sensors" again, you should no more
> have alarms for fans.
> 
> For the voltages it's a bit more tricky, you could compare with what
> your BIOS says and try to obtain the same in sensors by changing the
> labels and compute lines.
> 

For the temperature the BIOS sets the sensors as sensor 1: type 2,
sensor, sensor 2: type 3, sensor 3: type 2. Sensors 1 works and shows
the case temperature, but sensor 2 seems to oscillate from about -120 C
to about 90 C, and sensor 3 reads from -9 C to -7 C, and sensor 3 seems
to be nothing because it doesn't change with the CPU idling or working
hard. The voltages are reading correctly, but I just haven't changed
their labels to correspond to that of the BIOS. I'll change the fan to
remove the warning, but the CPU fan speed can be adjusted by PWM
adjustments so I'll probably just change the min, and max spin speed.