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Thread: pwmconfig produces defective /etc/fancontrol on Thinkpad R61i

  1. #1
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    pwmconfig produces defective /etc/fancontrol on Thinkpad R61i

    When I run pwmconfig in Raring on my Thinkpad R61i I hear it working and going through the various fan speeds, but it produces a defective /etc/fancontrol with missing minima and maxima:
    Code:
    # Configuration file generated by pwmconfig, changes will be lost
    INTERVAL=10
    DEVPATH=hwmon2=devices/platform/thinkpad_hwmon
    DEVNAME=hwmon2=thinkpad
    FCTEMPS=
    FCFANS= hwmon2/device/pwm1=hwmon2/device/fan1_input
    MINTEMP=
    MAXTEMP=
    MINSTART=
    MINSTOP=
    Fancontrol therefore won't start.

    Currently the fan runs much faster than it did under Windows when it wasn't quite fast enough to cool the hard disk . Ideally I want a moderate degree of cooling somewhere between the two OS defaults. How can I achieve this?

  2. #2
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    Re: pwmconfig produces defective /etc/fancontrol on Thinkpad R61i

    If you're getting the numbers you want when running pwmconfig, you can always put them into that file manually. I've only ever used that as a starting point.
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    Re: pwmconfig produces defective /etc/fancontrol on Thinkpad R61i

    Thanks for replying.

    Is there a guide somewhere which can tell me how to choose safe values?

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    Re: pwmconfig produces defective /etc/fancontrol on Thinkpad R61i

    pwmconfig and a piece of paper will help you choose initial values for the fan speeds.

    In my well-ventilated desktop all of my temps stay between 30 and 50°C. A laptop's likely to run significantly hotter in general usage. There will be a maximum operating temperature in the specifications for each of the components in there, but the balance between temperature and noise is a personal preference. Conky displays my temps and fan speeds and, when I was setting up fancontrol, I'd monitor those whilst doing a variety of tasks and tweak for less noise or lower temps till I got a setup I was happy with.
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    Re: pwmconfig produces defective /etc/fancontrol on Thinkpad R61i

    That's still a little vague I don't want to fry my hard disk because I intuited the wrong settings.

  6. #6
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    Re: pwmconfig produces defective /etc/fancontrol on Thinkpad R61i

    Yes.

    50-60 is probably reasonable for a laptop, but I personally wouldn't want one to go above about 75. But it's not my laptop, and it's not my ears, and it's not my lap that'll be cooking.
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  7. #7
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    Re: pwmconfig produces defective /etc/fancontrol on Thinkpad R61i

    Also try thinkfan. It will give finer control over fan speeds. For instance you can set temperature ranges for several sensors and ramp the fan up and down depending on how quiet you want it versus how toasty you allow your motherboard to run. The bottom line, most thinkpads are noisy and will always be noisy. Any slowdown of the fan to make it quiet will cause the temperatures to rise significantly. Over time, this will shorten motherboard life.

    http://zmalltalker.com/zlog/thinkfan.html
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