ECS GF7100-M3 MOBO (ca. 2008'ish). Core2 CPU 6400@2.13GHz (60W),
never tried to bother with sensors. Now i tried to upgrade the
CPU to a quad core (90W), and that one crashes, but only after
>= 24 hours under full CPU. Tried various better CPU heatsinks,
but still crashes, so i start wondering what the real temperatures are.
And thats when i am getting confused by the sensors output because
it seems to be contradictory and i can not find good explanations:
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +68.0°C (high = +84.0°C, crit = +100.0°C)
Core 1: +69.0°C (high = +84.0°C, crit = +100.0°C)
w83627dhg-isa-0a10
Adapter: ISA adapter
...
fan1: 0 RPM (min = 10546 RPM, div = 128) ALARM
fan2: 888 RPM (min = 1562 RPM, div = 8) ALARM
fan3: 0 RPM (min = 878 RPM, div = 128) ALARM
fan5: 0 RPM (min = 1757 RPM, div = 128) ALARM
temp1: +40.0°C (high = +31.0°C, hyst = +93.0°C) sensor = thermistor
temp2: +38.0°C (high = -0.5°C, hyst = -1.0°C) ALARM sensor = diode
temp3: +2.5°C (high = +80.0°C, hyst = +75.0°C) sensor = thermistor
fan2 is the CPU fan. I can tune it from ca. 850 to ca 2800, but
the increase does have astounding little impact on the temperature
readings.
temp1 never changes, i guess this is on some other chip - northbridge ?
temp2 must be CPU. With Core2 CPU its 28C idle and goes up to 38C full CPU.
Core 0/1 with Core2 CPU are ~55C idle and 68C full CPU.
With Quad core CPU, Core0/1/2/3 are about 50C idle and go up to
77C under full CPU load (CPU 0 always highest, the other 5C lower).
temp2 with Quad core CPU is 30C idle and 40C under full load.
With worse CPU cooler i had Core 0 go above 84C and then i started to
actually see more mcelog errors (even shorter than 24 hours).
So, now i wonder if both Core 0/1/2/3 and temp2 can be correct, or if
maybe one is wrong - or in general: whats the bloody temperature of
my CPUs really.
And i can not find a good web page that explains what coretemp-isa
vs w83627dhg-* are and how to validate that their readings are correct.
I am guessing, the coretemp-isa-000 sensor is actually IN the
CPU, but whether or not that means that the temperate values are
read correctly, i can not say. And temp2 is a temperature sensor
on the Mobo below the CPU, but whether or not that sensor reading
is configured correctly.. i can not say either.
If thats right, i still can't believe both sensors are correctly
set up. In steady state full CPU load i can not see how the under-the-CPU
temperature could be 30C lower than the in-CPU ones.
So ... what temperature does my CPU have and/or how can i make
sure both sensors are set up correctly ?
Thanks
Toerless
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