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#1 2007-03-04 11:14:37

moire
Member
Registered: 2006-01-07
Posts: 52

Monitor nforce4 temperature in linux?

I just installed a new heatsink on my northbridge. I want to make sure the temperature is ok, but I have never done this in linux. Is there a way?

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#2 2007-03-04 11:31:48

[vEX]
Member
From: Sweden
Registered: 2006-11-23
Posts: 450

Re: Monitor nforce4 temperature in linux?

Sure is!
You need lm_sensors and the i2c kernel modules for your motherboard, I'm not sure what Arch kernel has the modules since I compile my own kernel, but you should check this wiki entry, How to install and setup lm_sensors.

When you run the sensors script after setting lm_sensors up you might have to figure out which temperature is what.

Sys Temp:    +30°C  (high =   -17°C, hyst =  +121°C) 
CPU Temp:  +27.0°C  (high = +80.0°C, hyst = +75.0°C) 
AUX Temp:  +41.0°C  (high = +80.0°C, hyst = +75.0°C)

For me AUX is the northbridge, easiest way to find out what is what is to check the northbridge temperature in your BIOS and the right after Arch has booted run the sensors script and you should be able to map the output temperatures to your northbridge.

EDIT: I see the wiki entry is a bit outdated, the lm_sensors package contains the sensors script nowadays so you don't have to copy it from the wiki.

Last edited by [vEX] (2007-03-04 11:34:28)


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#3 2007-03-04 11:53:45

moire
Member
Registered: 2006-01-07
Posts: 52

Re: Monitor nforce4 temperature in linux?

Thanks for the info. I followed the instructions and here is the output of sensors:

M/B Temp:    +38°C  (low  =  +127°C, high =   +68°C)   sensor = thermistor   
CPU Temp:    +31°C  (low  =  +127°C, high =   +68°C)   sensor = thermistor   
Temp3:        +30°C  (low  =  +127°C, high =   +68°C)   sensor = thermistor

I'm assuming that Temp3 is the northbridge temp. Problem is (this is the same problem I had last time I tried lm_sensors), the temperatures bounce around a lot. Every time I run it, I get a different totally number for CPU and Temp 3 (a second later Temp3 read 8 degrees C). Do you think this is a result of my cheap motherboard?

I just want to make sure my northbridge isn't overheating, because I had a hard time getting the heatsink on there and I'm not sure it's seated properly...

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#4 2007-03-04 12:38:49

[vEX]
Member
From: Sweden
Registered: 2006-11-23
Posts: 450

Re: Monitor nforce4 temperature in linux?

As always the motherboard sensors output should be viewed with some sceptisism since they're bound to be off. Having a nforce4 motherboard myself I know the northbridge gets really hot, try placing your finger on the heatsink while the machine is running, if it's cold then it probably odesn't have a good connection. Refit it and make sure you have some thermal grease on and try again.

I'm not sure why the sensor readings on your motherboard change that much though, perhaps you should see if there is any BIOS update for your motherboard?

And it could be that the M/B temp is your northbridge while Temp3 is the case temperature, you should try looking in your BIOS and see what temperatures it reports for those sensors.

Last edited by [vEX] (2007-03-04 12:40:39)


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

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#5 2007-03-07 09:57:29

RedShift
Member
From: Belgium
Registered: 2004-07-16
Posts: 230

Re: Monitor nforce4 temperature in linux?

It's very unlikely your northbridge has a temperature sensor, that temp3 may just be a ghost sensor (the monitoring chip supports 3 sensors but that one isn't connected physically)


:?

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