[timstan]

I have a pentium m 750 (1.86ghz) running on an intel 915 chipset dell insiron 9300.

I understand about speed stepping and that this processor will normally run between 800mhz and 1.86ghz depending on processor load.

The processor is now constanly running below 800mhz, usually around the mid 300mhz mark. even with speedswitchxp set on performance mode it will never peak over 800mhz. i've run benchmarks, calculated pi to 32 million digits and it never goes above 800mhz.

the bios is current and set up correctly. the system never hangs or blue screens.

i have spent a week checking websites for solutions but none work!!!

all i have left to think is that a piece of hardware has failed but this seems unlikley as the system never hangs.



HELP ME PLEASE!!!!!!!!

[Grace]

Hello Timstan,

It seems that either your system bus speed is incorrect (since the M750 cannot ever work below 800MHz) which is highly unlikely in your case, or your monitoring application is reading nonsense.

The M750 has a 133MHz (533MHz quad) bus and a 14X multiplier, working at 1866MHz. The lowest possible speedstep setting is a multiplier of 7X, resulting at 800MHz speed. It cannot ever run below that speed!


You should try monitoring your PC with a new version of the WCPUID or CPUZ. I doubt that your current readings are correct at all. 800MHz with a multiplier of 14X would mean that the maximum bus speed is ~57MHz, an entirely impossible figure.