[lm-sensors] w83627hf temp1/2/3 questions

Jean Delvare khali at linux-fr.org
Wed Apr 27 18:12:37 CEST 2011


Hi Russell,

On Wed, 27 Apr 2011 11:03:43 -0500, Russell Jones wrote:
> Hello!
> 
> I am attempting to figure out what temp1, 2, and 3 in the following 
> output is actually showing:
> 
> k8temp-pci-00c3
> Adapter: PCI adapter
> Core0 Temp:
>               +31 C
> Core1 Temp:
>               +37 C
> 
> k8temp-pci-00cb
> Adapter: PCI adapter
> Core0 Temp:
>               +28 C
> Core1 Temp:
>               +33 C
> 
> w83627hf-isa-0c00
> Adapter: ISA adapter
> VCore 1:   +2.00 V  (min =  +0.00 V, max =  +4.08 V)
> VCore 2:   +2.10 V  (min =  +0.00 V, max =  +4.08 V)
> +3.3V:     +3.34 V  (min =  +2.82 V, max =  +3.79 V)
> +5V:       +5.03 V  (min =  +4.09 V, max =  +0.30 V)       ALARM
> +12V:      +5.78 V  (min = +12.28 V, max =  +5.78 V)       ALARM
> -12V:      -6.77 V  (min =  -0.19 V, max = -12.69 V)       ALARM
> -5V:       -3.94 V  (min =  +3.44 V, max =  -1.88 V)       ALARM
> V5SB:      +5.62 V  (min =  +5.75 V, max =  +4.89 V)       ALARM
> VBat:      +2.88 V  (min =  +2.86 V, max =  +3.04 V)
> fan1:        0 RPM  (min = 5000 RPM, div = 2)              ALARM
> fan2:        0 RPM  (min = 2689 RPM, div = 2)              ALARM
> fan3:        0 RPM  (min = 5487 RPM, div = 2)              ALARM
> temp1:       +23 C  (high =  +103 C, hyst =   -53 C)   sensor = thermistor
> temp2:     +21.0 C  (high =   +80 C, hyst =   +75 C)   sensor = thermistor
> temp3:     +27.5 C  (high =   +80 C, hyst =   +75 C)   sensor = thermistor
> vid:      +0.000 V  (VRM Version 2.4)
> alarms:
> beep_enable:
>            Sound alarm enabled
> 
> 
> 
> I have tried going through the documentation for this hardware monitor 
> chip for what is actually being monitored with no luck 
> (http://www.itox.com/pages/support/wdt/W83627HF.pdf)

You won't find the answer in the datasheet. The thermal sensors are
external, each board maker is free to put them wherever they want.

> I am attempting to find the ambient/chassis temperature, and was hoping 
> one of these three temps would be it. Any ideas?

The CPU temperature can usually be spotted by putting heavy load (e.g.
compilation or audio/video encoding) on the CPU. The CPU temperature
would raise faster and higher than the others. The comparison with the
k8temp values, and the fact that this is the highest value reported by
w83627hf, would suggest that temp3 is the CPU temperature. Which would
leave temp1 and temp2 for case temperature. Pretty cool, but you'll
know if it is possible or not.

Second hint is to compare with what the BIOS is printing.

PS: if you have slow fans, try increasing the div values to 4 or even 8
and you may get their speeds.

-- 
Jean Delvare




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