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  1. Re: HowTo: Undervolt your notebook CPU for longer battery life

    This is the first thread I check whenever a new version is released. Too lazy to compile my own modules :)
    Thanks!
  2. Re: HowTo: Undervolt your notebook CPU for longer battery life

    I'm not getting any problems running phctool after hibernate
  3. Re: HowTo: Undervolt your notebook CPU for longer battery life

    I would blame it on something else. This would be an all or nothing. Either everything freezes or it all works fine.
  4. Re: HowTo: Undervolt your notebook CPU for longer battery life

    Just set 19 as the VID for everything. The script will never crash as the processor is limiting the value to 19 whenever you put 18, 17..., 0. See my post a few pages back
  5. Re: HowTo: Undervolt your notebook CPU for longer battery life

    Please refer to http://ubuntuforums.org/showpost.php?p=5231160&postcount=91 to see how I got the 19 value for MY system. Find the correct value for your system in a similar way.
  6. Re: Original PHC values incorrect?

    hddtemp shows equal if not lower values after the undervolt.
  7. Re: Original PHC values incorrect?

    Ill gladly run the tests given the right tools. Right now, I can say there has been a marginal increase (10-20 mins). Though the 10-15 degs reduction in temperature makes the whole thing worth it
  8. Re: HowTo: Undervolt your notebook CPU for longer battery life

    I used phctool. You can get it from here: http://phc.athousandnights.de/files
    The tool has a Analysis tab as you can see in the screenshot.
    To get this to work, you first need to
    sudo modprobe...
  9. Re: HowTo: Undervolt your notebook CPU for longer battery life

    The last in the default list 136:15 seems a bit weird if you ask me. As an alternate, look up on phctool. It's got a GUI if you are more comfortable that way
  10. Re: HowTo: Undervolt your notebook CPU for longer battery life

    Okay an update on this.
    Seems my CPU (Core 2 Duo, don't know the exact model no.) limits the VIDs to a lower bound of 19. So I just set 19 as the VID for all the frequencies. Works like a charm. The...
  11. Re: HowTo: Undervolt your notebook CPU for longer battery life

    I can confirm it not working for me. The scripts goes through the values till -1 where it crashes. Even after echoing the values 13:3 10:1 8:1 6:1 to phc_controls, while working at 800MHZ, phctool...
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