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CaspianXI

Member

Registered: 2007-05-29

Posts: 59

Temperature sensors report wrong values

The value from /proc/acpi/thermal_zone/THRM/temperature [i]always[i] reads "40 C", regardless of whether my computer is idling, compiling, gaming, etc...

I've got a feeling that this isn't correct (btw, is it the temperature of my CPU?)

Here's the output from /usr/bin/sensors: (temperatures are in red)

it8716-isa-0290
Adapter: ISA adapter
VCore:       +1.33 V  (min =  +0.50 V, max =  +0.14 V)
VDDR:        +1.22 V  (min =  +0.58 V, max =  +0.26 V)
+3.3V:       +3.26 V  (min =  +2.45 V, max =  +2.00 V)
+5V:         +4.81 V  (min =  +0.38 V, max =  +2.96 V)
+12V:       +11.97 V  (min =  +1.86 V, max =  +1.47 V)
in5:         +1.94 V  (min =  +1.68 V, max =  +2.43 V)
in6:         +1.17 V  (min =  +0.00 V, max =  +0.00 V)
5VSB:        +4.76 V  (min =  +0.08 V, max =  +4.44 V)
VBat:        +3.15 V
fan1:       1864 RPM  (min =   12 RPM)
fan2:          0 RPM  (min =   10 RPM)
fan3:          0 RPM  (min =   11 RPM)
temp1:       +14.0 C  (low  = +127.0 C, high = +110.0 C)  sensor = thermal diode
temp2:      +127.0 C  (low  = +127.0 C, high = +110.0 C)  sensor = transistor
temp3:      +127.0 C  (low  = +127.0 C, high = +110.0 C)  sensor = transistor
cpu0_vid:   +1.550 V

k8temp-pci-00c3
Adapter: PCI adapter
Core0 Temp:   -3.0 C                                   
Core0 Temp:  -13.0 C                                   
Core1 Temp:   +7.0 C                                   
Core1 Temp:   -4.0 C

Now, these values vary, but how is it possible for Core0 and Core1 temperatures to be near/below freezing while temp2 and temp3 are above boiling?! I think that somehow the sensors aren't being read correctly... but I can't figure out what is going on.

Any help would be appreciated... thanks!

By the way, how can I find what temp1, temp2, and temp3 refer to? Thanks!

Last edited by CaspianXI (2008-01-26 21:05:20)

[vEX]

Member

From: Sweden

Registered: 2006-11-23

Posts: 450

Re: Temperature sensors report wrong values

Do the sensor values look that crazy in the BIOS also? The sensors usually always show the values with some degree of error.. but that is really insane!

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PC: Antec P182B | Asus P8Z77-V PRO | Intel i5 3570k | 16GB DDR3 | GeForce 450GTS | 4TB HDD | Pioneer BDR-207D | Asus Xonar DX | Altec Lansing CS21 | Eizo EV2736W-BK | Arch Linux x86_64
HTPC: Antec NSK2480 | ASUS M3A78-EM (AMD 780G) | AMD Athlon X3 425 | 8GB DDR2 | GeForce G210 | 2TB HDD | Arch Linux x86_64
Server: Raspberry Pi (model B) | 512MB RAM | 750GB HDD | Arch Linux ARM

CaspianXI

Member

Registered: 2007-05-29

Posts: 59

Re: Temperature sensors report wrong values

The voltage sensors are pretty much what I get from the BIOS, but the temperature from the BIOS is a more reasonable ~20 C (The BIOS only gives me one temperature reading)

My motherboard is a Biostar TF560 (with nVIDIA nForce 560), and my CPU is a AMD Athlon 64 x2 5000+

Do I need to download drivers form my motherboard or CPU?

Thanks

Last edited by CaspianXI (2008-01-26 23:36:31)

Mr Green

Forum Fellow

From: U.K.

Registered: 2003-12-21

Posts: 5,899

Website

Re: Temperature sensors report wrong values

more than likely you will have to edit sensors config, check lm_sensors website for your motherboard

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Mr Green

CaspianXI

Member

Registered: 2007-05-29

Posts: 59

Re: Temperature sensors report wrong values

I can't find my motherboard on the lm_sensors website... can I edit my sensors config file to offset the values so that they're reasonably close to what the BIOS is telling me? Or, do I also need to scale the values by some factor?

Mr Green

Forum Fellow

From: U.K.

Registered: 2003-12-21

Posts: 5,899

Website

Re: Temperature sensors report wrong values

http://www.lm-sensors.org/wiki/FeedbackAndSupport

try mailing list or irc ....

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Mr Green