Can I upgrade my laptop with a Low Voltage Pentium M?

Archived from groups: comp.sys.laptops (More info?)

Can I upgrade my laptop with a Low Voltage Pentium M?

I have a Dell D600 which has a standard Pentium M. I noticed that the
Low Voltage Pentium Ms (as opposed to the Very Low Voltage CPUs) use a
voltage range that is contained within the standard Pentium Ms voltage
range. The following figures are for the 90 nm Dothan versions:

Pentium M 0.988 - 1.356
Low Voltage 0.988 - 1.116
Ultra Low Voltage 0.812 - 0.940

This got me wondering if it's possible for laptops to easily support a
low voltage version. Or does the voltage controller need to be of a
higher quality, to accurately provide the very fine voltage
differences that the low voltage versions require? Different speed
steps can require as little as 0.016 of a volt difference when
switching.

I assume that the BIOS has to specifically support a particular CPU,
which is probably going to be the stumbling block if the voltage
controller isn't.
Or can you use something like RMClock to setup custom voltage steps?

Hmmm!

Archived from groups: comp.sys.laptops (More info?)

Cuervo <nonono@nonono.com> wrote:
: Can I upgrade my laptop with a Low Voltage Pentium M?

I doubt it. Why would you want to? I don't think it would improve
battery life all that much vs. a regular Pentium M running at the same
clock speed. If so, manufacturers would already offer the LV Pentium
M as an option in "regular" laptops, but they don't.

Andrew
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