[lm-sensors] Inconsistents results

Georges Giralt georges.giralt at free.fr
Sun Feb 4 19:37:51 CET 2007


Hi Rudolf !
Thanks a lot for your answer !
You'll find enclosed the dsdt.bin and cpuinfo files and my comments inline :
Rudolf Marek a écrit :
> Hello,
> 
> Georges Giralt wrote:
>> Hi !
>> I own a recent Asus mainboard (M2NPV-VM) with an Athlon 64X2 3600+ (the 
>> cheap low cache version, low power consumption).
>> The results I get with ACPI and sensors are inconsistent :
>> The Mobo BIOS gives 28~30 ° C for the proc and 1°C above for the mobo 
>> so 29~31 °C)
>> Under Linux (Fedora Core 6 2.6.19-1.2895.fc6 X86-64) I get :
>> # cat /proc/acpi/thermal_zone/THRM/temperature
>> temperature:             40 C
> 
> Please can you provide the dsdt.bin file?
> 
> cat /proc/acpi/dsdt > /tmp/dsdt.bin
> 
> (this command will create it in the /tmp directory)
> 
>> #sensors
>> k8temp-pci-00c3
>> Adapter: PCI adapter
>> Core0 Temp:
>>               +13°C
>> Core1 Temp:
>>               +27°C
>>
>> it8716-isa-0290
>> Adapter: ISA adapter
>> VCore:     +1.02 V  (min =  +0.00 V, max =  +4.08 V)
>> VDDR:      +3.25 V  (min =  +0.00 V, max =  +4.08 V)
>> +3.3V:     +0.00 V  (min =  +0.00 V, max =  +4.08 V)   ALARM
>> +5V:       +4.84 V  (min =  +0.00 V, max =  +6.85 V)
>> +12V:     +11.78 V  (min =  +0.00 V, max = +16.32 V)
>> in5:       +0.00 V  (min =  +0.00 V, max =  +4.08 V)   ALARM
>> in6:       +0.00 V  (min =  +0.00 V, max =  +3.82 V)   ALARM
>> 5VSB:      +4.68 V  (min =  +0.00 V, max =  +6.85 V)
>> VBat:      +2.91 V
>> fan1:     2860 RPM  (min =    0 RPM)
>> fan2:     1391 RPM  (min =    0 RPM)
>> fan3:        0 RPM  (min =    0 RPM)
>> temp1:       +18°C  (low  =    -1°C, high =  +127°C)   sensor = diode
>> temp2:       +28°C  (low  =    -1°C, high =  +127°C)   sensor = thermistor
>> temp3:       +25°C  (low  =    -1°C, high =  +127°C)   sensor = thermistor
>> vid:      +0.000 V
>> #
>> Two things bother me : First, the discrepancy between core0 temp and 
>> core1 temp. As they are into the same package, they should even out, 
>> should'nt they ? The second thing is that the spread ot temperature I 
>> get : 13, 18, 25, 27, 28 and 40 °C ...
> 
> You mean when you try to raise the temperature - CPU usage?
No, no the discrepancies between the two core temps, and the temp seen 
by the mobo regarding the CPU temp. it goes from 13 to 40 °C depending 
which way you use to find it...
> 
>> If anybody has an answer, a lead, or an idea, it will have my gratitude !
> 
> The ACPI versus lm-sensors temperature may be explained after I will have the
> dsdt.bin
> 
> Add +49
> 
> 
> 
> 13 62 3E  0011 1110
> 
> 18 67 43  0100 0011
> 
> 25 74 4A  0100 1010
> 
> 27 76 4C  0100 1100
> 
> 28 77 4D  0100 1101
> 
> 40 89 59  0101 1001
> 
> I added the 49 value to get back the raw value, no bit is stuck. Btw the diode
> reading reads 18C - quite close to 13C - maybe the internal CPU sensors is not
> well calibrated?
> 
> 28-25 is the thermistor temperature of motherboard and not processor.
This is low regarding BIOS readings : When the CPU is at 28°C the mobo 
is about 31 °C for the BIOS. (BTW I've the latest BIOS :  Rev 0603)
> 
> Please also include the cat /proc/cpuinfo
> 
> Thanks,
> Rudolf
> 
> 
Thanks a lot for your help and answers !

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