IT8728 shows wrong CPU temperature

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Hi!

I have a Gigabyte GA-P67A-UD5-B3 with a IT8728F, yesterday i upgraded to Linux 3.3 and tested the new IT87 module.
As i will show below it shows wrong CPU temperature.

First:

temp1 shows system or motherboard if you want.
temp2 shows ?, probably unused
temp3 shows CPU but is 7-8 degrees wrong compared to BIOS (I know that temp3 is CPU because it is the only temp value that differ under load)


BIOS at this moment in time showed:
SYS 34°C
CPU 32°C


coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +36.0°C  (high = +80.0°C, crit = +98.0°C)
Core 0:         +36.0°C  (high = +80.0°C, crit = +98.0°C)
Core 1:         +35.0°C  (high = +80.0°C, crit = +98.0°C)
Core 2:         +33.0°C  (high = +80.0°C, crit = +98.0°C)
Core 3:         +35.0°C  (high = +80.0°C, crit = +98.0°C)

it8728-isa-0290
Adapter: ISA adapter
in0:          +1.08 V  (min =  +0.00 V, max =  +3.06 V)
in1:          +2.03 V  (min =  +0.00 V, max =  +3.06 V)
in2:          +2.96 V  (min =  +0.00 V, max =  +3.06 V)
in3:          +2.93 V  (min =  +0.00 V, max =  +3.06 V)
in4:          +0.24 V  (min =  +0.00 V, max =  +0.84 V)
in5:          +1.20 V  (min =  +0.00 V, max =  +3.06 V)
in6:          +1.55 V  (min =  +0.00 V, max =  +3.06 V)
3VSB:         +3.38 V  (min =  +0.00 V, max =  +6.12 V)
Vbat:         +3.26 V  
fan1:        1056 RPM  (min =    0 RPM)
fan2:           0 RPM  (min =    0 RPM)
fan3:           0 RPM  (min =    0 RPM)
fan4:           0 RPM  (min =    0 RPM)
fan5:        1374 RPM  (min =    0 RPM)
temp1:        +34.0°C  (low  = +127.0°C, high = +127.0°C)  sensor = thermistor
temp2:        +31.0°C  (low  = +127.0°C, high = +127.0°C)  sensor = thermistor
temp3:        +25.0°C  (low  = +127.0°C, high = +127.0°C)  sensor = thermistor
intrusion0:  ALARM



Conclusion:

fan1, shows correct value.
fan5, shows correct value.
temp1 (system), shows correct value.
temp3 (CPU), shows wrong value, in this case 25°C instead of 32°C.


I have studied the other IT8278 reports i have found and as far as i can tell that they suffer from the same wrong cpu readings, i do not understand why they have reported them as correct...


Thanks in advance.

/Tomas
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