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Pin mod to disable SpeedStep on Pentium M?

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Kahenraz

New Member
Joined
Oct 3, 2018
I have a Pentium M laptop that I would like to keep permanently at its lowest clock speed (600Mhz). While it is possible to do this through software in Windows, I would like to run other operating systems on it like DOS and want to keep the CPU permanently at this clock speed.

Is there a pin that I can remove from this processor to prevent it from clocking up?
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
You cant disable it at the bios level?

Wont disabling speedstep run things at FULL speed?

Maybe lower the system multiplier in the bios if possible.
 
OP
K

Kahenraz

New Member
Joined
Oct 3, 2018
It's a laptop and does not provide any options in the bios to set the multiplier.
 

ihrsetrdr

Señor Senior Member
Joined
May 17, 2005
Location
Close to the San Andreas Fault
I have a Pentium M laptop that I would like to keep permanently at its lowest clock speed (600Mhz). While it is possible to do this through software in Windows, I would like to run other operating systems on it like DOS and want to keep the CPU permanently at this clock speed.

Is there a pin that I can remove from this processor to prevent it from clocking up?

OMG, pin modding a Pentium M, those were the days! I don't recall a pin mod to disable speedstep, but have a look at some old forum threads:

https://www.overclockers.com/forums...Ultimate-Pentium-m-Pinmod-Voltmod-Guide/page3

https://www.overclockers.com/forums...6-The-Ultimate-Pentium-m-Pinmod-Voltmod-Guide

More overclockers.com google page hits
 
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