[vindimy]

Hi guys,

I'm new at OC'ing and hoping that my question isn't too obvious! Here's my problem:

I've been playing around with my MSI P7N Platinum MOBO (having Core 2 Duo E8500 on it and Patriot Extreme DDR2 800). I changed the FSB Frequency like this (boots OK):

Code:

CPU Freq: 3.16 -> 3.42 GHz (333*9.5 -> 360*9.5)
FSB: 1333 -> 1440 MHz
DRAM: 800 -> 792 MHz
Resulting Temp (when idle): 30 C

This is exactly what shows up in BIOS. BUT! When I bootup to Win XP SP3, I get old, non-OC'd settings with CPU-Z! I boot into CentOS 5.2 then, and same thing, no change in any frequencies whatsoever!

Why so?? See attached screenshots.

 

[OverclockTheStock]

make sure intel speed stepping is disabled.

 

[JTD92]

Stupid question but did you press F10 and save it into the BIOS?

 

[vindimy]

yeah, i already specifically checked to disable EIST...

 

[vindimy]

yeah, the BIOS settings are saved correctly as I can see the overclocked numbers after each reboot.

 

[JTD92]

Try resetting your CMOS and start from scratch.

 

[vindimy]

Solved the problem.

For future reference: when overclocking an MSI board, disable the "Spread Spectrum" setting, otherwise none of overclocking options will work in OS. MSI recommends disabling this setting when overclocking. Apparently, overclocking wouldn't even work with this setting enabled.

What is "Spread Spectrum": MSI's custom setting that

Quote:

"reduces the EMI (Electromagnetic Interference) generated by modulating the pulses so that the spikes of the pulses are reduced to flatter curves."