smsc47m192 weirdness

[ticket]

How is smsc47m192 temp is computed? k8temp readings are very close to the BIOS

motherboard: Gigabyte GA-K8U-939

kernel 2.6.18.2 with a k8temp patch lm-sensors 2.10.1

$ sensors
k8temp-pci-00c3
Adapter: PCI adapter
Core0 Temp:
             +36°C
Core1 Temp:
             +32°C

smsc47m192-i2c-0-2d
Adapter: SMBus ALi 1563 Adapter @ 1400
+2.5V:     +2.56 V  (min =  +0.00 V, max =  +3.32 V)   
VCore:     +1.10 V  (min =  +0.00 V, max =  +2.99 V)   
+3.3V:     +3.28 V  (min =  +0.00 V, max =  +4.38 V)   
+5V:       +5.13 V  (min =  +0.00 V, max =  +6.64 V)   
+12V:     +12.12 V  (min =  +0.00 V, max = +15.94 V)   
VCC:       +3.46 V  (min =  +0.00 V, max =  +4.38 V)   
+1.5V:     +1.66 V  (min =  +0.00 V, max =  +1.99 V)   
+1.8V:     +2.39 V  (min =  +2.39 V, max =  +2.39 V)   ALARM
Chip Temp: +31.0°C  (low  =  -128°C, high =  +127°C)  
CPU Temp:  +52.0°C  (low  =  -128°C, high =  +127°C)  
Sys Temp:  +28.0°C  (low  =    -1°C, high =    -1°C)  
vid:      +1.500 V  (VRM Version 2.4)

[ruik]

Duplicate of ticket #2139