Asus A8N SLI Deluxe + lm_sensors

[piercey]

Hi all,

Anyone else experiencing a problem with lm_sensors, where it appears to be mixing up the temperature of the M/B (chipset) and the CPU ? Executing lm_sensors i get:

pierce@gizmo ~ $ sensors
it8712-isa-0290
Adapter: ISA adapter
VCore 1: +1.10 V (min = +4.08 V, max = +4.08 V) ALARM
VCore 2: +0.00 V (min = +4.08 V, max = +4.08 V) ALARM
+3.3V: +6.66 V (min = +8.16 V, max = +8.16 V) ALARM
+5V: +4.95 V (min = +6.85 V, max = +6.85 V) ALARM
+12V: +12.03 V (min = +16.32 V, max = +16.32 V) ALARM
-12V: -4.53 V (min = +3.44 V, max = +3.93 V) ALARM
-5V: -13.64 V (min = +4.03 V, max = +4.03 V) ALARM
Stdby: +4.89 V (min = +6.85 V, max = +6.85 V) ALARM
VBat: +3.09 V
fan1: 1795 RPM (min = 0 RPM, div = 8)
fan2: 1562 RPM (min = 0 RPM, div = 8)
fan3: 5113 RPM (min = 0 RPM, div = 8)
M/B Temp: +25 C (low = -1 C, high = -1 C) sensor = thermistor
CPU Temp: +31 C (low = -1 C, high = -1 C) sensor = thermistor
Temp3: +24 C (low = -1 C, high = -1 C) sensor = thermistor

Here sensors is actually returning the temp of my M/B for CPU and vice versa. Im able to validate this as when I stress the cpu by compiling, the "M/B Temp" raises dramatically, whereas the "CPU Temp" may only raise by 1-2C. Also when in the bios my cpu temp is always lower than my M/B due to my zalman heatsink.

I was initially using the 1013 bios, but updated to 1016 to see if it would fix the problem, which it didnt. Anyone have any ideas? Should this be reported to lm_sensors or is no one else experiencing this?

Thanks in advance! 🙂

 

[DidlySquat]

yeah I got the same problem....


but it's not too bad since you can just use the other temp when using this output in your favorite monitoring program (e.g. gkrellm)

pwned

 

[cleverhandle]

This isn't a hardware issue at all. lm-sensors is pretty simplistic - it's really just reading some raw numbers off the sensors and expecting you to make sense of them in /etc/sensors.conf. You need to edit that file to make sure that you're interpreting things correctly. Besides the labels for each line, you can also adjust the formulas used to convert raw measurements into temps. You'll want to check out your reported temps against those shown in your BIOS - don't assume that the default formulas are accurate. Mine needed quite a bit of tweaking.

 

[piercey]

Originally posted by: DidlySquat
yeah I got the same problem....


but it's not too bad since you can just use the other temp when using this output in your favorite monitoring program (e.g. gkrellm)

pwned

Aye that's exactly what I am doing at the moment, I personally was just wondering if it was was a bug.

Thanks for the extra info cleverhandle 😉