• Registered: 2009-01-30
  • Posts: 125

Topic: Undervolting the CPU for prolonged batterylife, reduced fan noise

very interesting concept especially useful for notebook owners.
this article shows what's in it for you (even though its windows based)
http://www.nordichardware.com/Articles/ … ivelse=465

here is one well visited thread:
http://ubuntuforums.org/showthread.php?t=786402
one targeting multicoresystems:
http://ubuntuforums.org/showthread.php?p=4960606
in german:
http://wiki.ubuntuusers.de/Prozessorspa … s-Terminal

I'm gonna investigate further and try it, hope my laptop will produce less noise then

Last edited by Shinkanzen (2009-07-22 02:40:34)

  • Registered: 2009-02-18
  • Posts: 591

Re: Undervolting the CPU for prolonged batterylife, reduced fan noise

itsn't that the same thing as eeeasy/elmurato script/eee-control "powersave mode"?

  • From: California, USA
  • Registered: 2008-11-29
  • Posts: 8,647

Re: Undervolting the CPU for prolonged batterylife, reduced fan noise

Afaik those scripts just change the CPU frequency but they don't undervolt it.

Note: ** Please read before posting **

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  • Registered: 2008-12-13
  • Posts: 1,480

Re: Undervolting the CPU for prolonged batterylife, reduced fan noise

I've been meaning to look into this, but I just reinstalled karmic and it isn't supported in the new kernel. they compiled the modules into the kernel that you need to patch, so you'd have to recompile the whole kernel, which I guess is technically still supported, but too much effort for me.

I say never be complete, I say stop being perfect, I say lets evolve, let the chips fall where they may.
  • Registered: 2009-01-30
  • Posts: 125

Re: Undervolting the CPU for prolonged batterylife, reduced fan noise

you can get a precompiled kernel (2.6.28-13) here:
https://launchpad.net/~linux-phc/+archive/ppa/