Undervolting Pentium M

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Undervolting Pentium M

Postby aelfinn on Wed Jul 01, 2009 9:16 am

I'm running Gloria with Kernel 2.6.30 and I'd like to increase battery life of my laptop as well as reduce fan noise. On Windows, I used to use NHC to undervolt the CPU, which was as painless as it was effective. Since I'm not yet too familiar with Linux, I'd appreciate a hint or two towards a straightforward solution on Linux. (The info in the 2008 thread on undervolting didn't seem to do the trick for me.)

TIA!
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Re: Undervolting Pentium M

Postby richyrich on Wed Jul 01, 2009 11:21 am

Hi,
Do you have 'speedstep' enabled in your BIOS?

EDIT: reason I'm asking, I have an IBM with Pentium M, with speedstep enabled, cpu throttling is automatic. (from 2 Ghz -> 1 Ghz.)
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Re: Undervolting Pentium M

Postby aelfinn on Wed Jul 01, 2009 11:24 am

richyrich wrote:Do you have 'speedstep' enabled in your BIOS?

Speedstep is working fine, yes. But adjusting the CPU frequency is not really what I need; adjusting the voltage is.
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