lm_sensors output
Randy Kelsoe
randykel at swbell.net
Wed Aug 11 21:26:02 UTC 2004
Jack Howarth wrote:
>However the sensors output shows two sections. One is for
>w83627hf-isa-0c00 and contains actual nonzero values for the
>temperatures and fan speeds. The second is for w83627hf-i2c-0-2d
>and contains only zeros for the temperature and fan speed.
>The first table is marked as Adapter: ISA adapter whereas the
>second with zero values is marked SMBus I801 adapter. What is
>the rational for which adapter gets the temperature measurements?
>Oh, this is for a dual Xeon box. Thanks in advance for any clues.
> Jack
>
>
You access the sensor chip via either the SMBus or the ISA bus. I have
never had any luck getting the sensors to read from the SMBus. I have
always used the ISA bus. (Run sensors-detect again and read the output
more closely for more details). You will most likely need to tweak your
/etc/sensors.conf file for your sensor chipset to get more accurate
values when you run the sensors command. What I do is go into the BIOS
screen and check the values there and try and adjust my sensors to match
what I see in the BIOS display. If you want to be really accurate, get a
digital thermometer and voltmeter, and measure the values, then tweak
your sensors.conf file to match.
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