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Thread: temp and fan RPM

  1. #1
    Join Date
    Mar 2013
    Beans
    16

    temp and fan RPM

    Hi,

    Just finished installing Ubuntu 12.04.2 on my Lenovo Thinkpad T430. My thinkpad does not have the Switchable Graphics, just stock graphics card on the motherboard.

    I installed the lm sensor utility and given below is the output:

    Code:
    think@t430:~$ sensors
    acpitz-virtual-0
    Adapter: Virtual device
    temp1:        +43.0C  (crit = +200.0C)
    
    coretemp-isa-0000
    Adapter: ISA adapter
    Physical id 0:  +43.0C  (high = +87.0C, crit = +105.0C)
    Core 0:         +41.0C  (high = +87.0C, crit = +105.0C)
    Core 1:         +41.0C  (high = +87.0C, crit = +105.0C)
    
    thinkpad-isa-0000
    Adapter: ISA adapter
    fan1:        2471 RPM
    
    think@t430:~$
    The next few seconds when I run the command, everything else remains pretty much same, just the fan1 RPM shows 0
    Code:
    think@t430:~$ sensors
    acpitz-virtual-0
    Adapter: Virtual device
    temp1:        +42.0C  (crit = +200.0C)
    
    coretemp-isa-0000
    Adapter: ISA adapter
    Physical id 0:  +43.0C  (high = +87.0C, crit = +105.0C)
    Core 0:         +43.0C  (high = +87.0C, crit = +105.0C)
    Core 1:         +42.0C  (high = +87.0C, crit = +105.0C)
    
    thinkpad-isa-0000
    Adapter: ISA adapter
    fan1:           0 RPM
    
    think@t430:~$
    The next few seconds, the fan1 RPM jumps again to 2495 RPM...and then gradually reduces and this keeps happening.

    My questions are:

    1) Are the Core Temps too high? 42-43 and sometimes even 48 Degree Celcius.... I am very much using a cooling pad.

    2) The fan1 RPM worries me the most...

    Please let me know.

  2. #2
    Join Date
    Apr 2009
    Location
    UK Lake District
    Beans
    3,014
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Please let me know if the temp and Fan RPM looks ok.

    Don't believe everything you read. Use your eyes... Is that Fan spinning?

    The figures are self explanatory and clearly OK
    Ubuntu Member Always something different. Promoting Ubuntu and System 76 at TUXPC

  3. #3
    Join Date
    Mar 2013
    Beans
    16

    Re: Please let me know if the temp and Fan RPM looks ok.

    Hi Carl,

    Thank you for your quick reply. The Ubuntu forums are really great....never got such a quick reply before on any forum till date.

    Coming back to the heat issue, I can hear the fan spinning, but its not whizzing too much.

    The laptop feels a lot more warm, especially the left palm rest really feels a lot warm...warmer than how it feels on Win 7.

    The bottom of the laptop feels a lot warm too....

    Wierd thing is, even with RealTemp application (Win7) it states temperature at the same degree, but somehow the laptop feels much more warm to touch on Ubuntu.....

  4. #4
    Join Date
    Apr 2009
    Location
    UK Lake District
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    3,014
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Please let me know if the temp and Fan RPM looks ok.

    I'm on a eeepc ATM

    Code:
    kernelcruncher@kernelcruncher-1015PEM ~ $ sensorsacpitz-virtual-0
    Adapter: Virtual device
    temp1:        +40.0C  (crit = +100.0C)
    
    
    coretemp-isa-0000
    Adapter: ISA adapter
    Core 0:       +23.0C  (crit = +100.0C)
    Core 1:       +25.0C  (crit = +100.0C)
    Feels..... is kind of subjective
    I'm not saying you are imagining it. But if the sensors are suggesting all is well and there is no substantial evidence to the contrary.......

    But I guess it's good to be careful
    Ubuntu Member Always something different. Promoting Ubuntu and System 76 at TUXPC

  5. #5
    Join Date
    Mar 2013
    Beans
    16

    Re: Please let me know if the temp and Fan RPM looks ok.

    Hi Carl,

    Thank you for sharing the details.

    However, I do see that my Core 0 and Core 1 temperature is double than yours....I think that could mean that my laptop is getting way too hot.

    I get the same readings on Ubuntu and Win 7, though. Is there some way to know what is a "good/decent" temperature for a laptop?

    Is 45 C way to high?

  6. #6
    Join Date
    Jun 2007
    Beans
    11,184

    Re: Please let me know if the temp and Fan RPM looks ok.

    Quote Originally Posted by t430 View Post
    Is 45 C way to high?
    45C is fine, but I'm assuming that's at idle, so it doesn't mean a whole lot. The real test is loading your CPU (use cpuburn or just watch a fullscreen Flash video) and then checking the temps.

  7. #7
    Join Date
    Apr 2009
    Location
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    3,014
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Please let me know if the temp and Fan RPM looks ok.

    Lenovo G550 running openSUSE 12.3 kde

    Code:
    acpitz-virtual-0Adapter: Virtual device
    temp1:        +44.0C  (crit = +119.0C)
    
    
    coretemp-isa-0000
    Adapter: ISA adapter
    Core 0:       +40.0C  (high = +105.0C, crit = +105.0C)
    Core 1:       +40.0C  (high = +105.0C, crit = +105.0C)
    Ubuntu Member Always something different. Promoting Ubuntu and System 76 at TUXPC

  8. #8
    Join Date
    May 2010
    Location
    Tewkesbury uk
    Beans
    7,916
    Distro
    Ubuntu Development Release

    Re: Please let me know if the temp and Fan RPM looks ok.

    Hi

    I would be happy with your temps.
    Code:
    matthew-S206:/home/matthew % sensors                                         
    acpitz-virtual-0
    Adapter: Virtual device
    temp1:        +67.0C  (crit = +98.0C)
    
    k10temp-pci-00c3
    Adapter: PCI adapter
    temp1:        +68.0C  (high = +70.0C)
                           (crit = +115.0C, hyst = +115.0C)
    
    radeon-pci-0008
    Adapter: PCI adapter
    temp1:        +68.0C  
    
    matthew-S206:/home/matthew %
    Under some load though

    Code:
    load average: 2.20, 2.18, 2.16
    Lenovo s206.

    Kind regards
    If you believe everything you read, you better not read. ~ Japanese Proverb

    If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed. - Mark Twain

  9. #9
    Join Date
    Mar 2013
    Beans
    16

    Re: Please let me know if the temp and Fan RPM looks ok.

    Hi Matthew,

    Thank you so much.

    I can breath a little easy now

    Thing is, I mainly got this laptop to install VMWare and run 2-3 instances of Linux, and stuff on those lines...If I did that, the temperature would surely shoot up, so these temps had me worried.

    Does your laptop feel unusually warm to touch ?

  10. #10
    Join Date
    May 2010
    Location
    Tewkesbury uk
    Beans
    7,916
    Distro
    Ubuntu Development Release

    Re: Please let me know if the temp and Fan RPM looks ok.

    Hi

    Quote Originally Posted by t430 View Post
    Does your laptop feel unusually warm to touch ?
    Sometimes it does feel quite warm. Do do tend to either keep it on a table and, if it's on my lap, i keep it on an upturned tray to help ensure adequate air flow.

    I would really not worry too much about the temps you are currently seeing.

    They obviously will go up under load but i really only ever get worried about temps > 75 degrees C. That then is starting to run pretty hot.

    Stress testing the graphics and CPU on my friend box saw temps getting pushed it to 90 and 85. Now that is getting hot !

    CPU's are pretty robust nowadays and temp sensors are not always too accurate.

    Kind regards
    If you believe everything you read, you better not read. ~ Japanese Proverb

    If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed. - Mark Twain

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