On Wed, 2010-08-04 at 18:22 +0300, Nikos Chantziaras wrote:
On 08/04/2010 02:14 PM, Xi Shen wrote:
hi,
after i setup lm_sensors on my gentoo amd64, i ran sensors, and got
the below output
coretemp-isa-
Adapter: ISA adapter
Core 0: +61.0 C (high = +74.0 C, crit = +100.0 C)
coretemp-isa-0001
Adapter: ISA adapter
Core 1: +61.0 C (high = +74.0 C, crit = +100.0 C)
This is the sensor inside the CPU. The kernel doesn't know how to
interpret this value on non-mobile CPUs, and it's usually off by 10C to
15C on desktop CPUs.
CPU Temperature: +49.0 C (high = +90.0 C, crit = +125.0 C)
This is the sensor on your motherboard that resides directly under the
CPU. This an accurate temp and the kernel knows exactly how to
interpret the values.
This is windows specific but has lots on how Intel/AMD work.
http://www.alcpu.com/CoreTemp/
This page seems to imply that Linux's use of coretemp is not as
detailed as available to windoze users and if an unknown cpu will use
a default value which may be incorrect.
http://www.mjmwired.net/kernel/Documentation/hwmon/coretemp
The lm_sensor temperatures (and voltages) are always highly suspect,
usually being based on users experiments rather than manufacturer
information which is usually not available. Also, I suspect variation
even between motherboards of the same type as sometimes the supposed
lm_sensors values for one of my systems (often cpu voltage) are not even
close.
BillK
