[lm-sensors] IT8728 shows wrong CPU temperature
khali at linux-fr.org
Fri Mar 23 10:05:42 CET 2012
Tomas, please don't top-post.
On Fri, 23 Mar 2012 10:00:09 +0100, Tomas Johansson wrote:
> Because, these are idle values:
> SYS 34 C
> CPU 32 C
Most likely the above are NOT idle values. The BIOS is not idle - at
least never as idle as Linux can be with CPU frequency and voltage
scaling and low C states.
> 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
> And when i for example compile firefox temp3 will rise to around 45-50 C, while temp2 stays at 31 C.
This is correct reasoning though. temp3 is CPU temp. But you're
comparing Linux idle with BIOS not idle, no surprise the values don't
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