On Feb 9, 2011, at 1:48 AM, Owl <owl@xxxxxxxx> wrote:
gentoo ~ # uname -a
Linux gentoo 2.6.36-gentoo-r7 #1 SMP Fri Jan 14 14:34:23 MSK 2011
i686 Intel(R) Atom(TM) CPU N550 @ 1.50GHz GenuineIntel GNU/Linux
gentoo ~ # sensors
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +18.0ÂC (crit = +100.0ÂC)
coretemp-isa-0001
Adapter: ISA adapter
Core 1: +22.0ÂC (crit = +100.0ÂC)
Can you also read fan speeds? Is there a fan on the CPU? Some Atom
systems have a fan on the northbridge but not on the CPU itself.
Are there any other temperature sensors in the system for comparison?
gentoo ~ # modprobe acpi_cpufreq
gentoo ~ # sensors
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +37.0ÂC (crit = +100.0ÂC)
coretemp-isa-0001
Adapter: ISA adapter
Core 1: +41.0ÂC (crit = +100.0ÂC)
It's normal?
I think, second output is much closer to BIOS values.
Again, if we knew more about other sensors or fans in the system, this
might be explained by acpi also stopping the fan when the CPU is idle
because CPU power is known to be so low and without a fan, thermal
margins are stil met (100degC)
If you don't have sensors, can you simply look or listen to the system
when you load the acpi-cpufreq module? Does anything change?
Phil P.
--
Philip Pokorny, RHCE
Chief Hardware Architect
PENGUIN COMPUTING, Inc
www.penguincomputing.com
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