[ntp:questions] Re: Windows timekeeping - sudden degradation - why?

David J Taylor david-taylor at blueyonder.co.not-this-bit.nor-this-part.uk.invalid
Thu Dec 15 08:03:49 UTC 2005

John Allen wrote:
> I found references to possibly using a different HAL (Hardware
> Abstraction Layer). I then did what was probably not wise, which was
> to change from "ACPI Uniprocessor PC" to "Advanced Configuration and
> Power Interface (ACPI) PC". I also set the BIOS option "FSB Spread
> Spectrum" to "disabled".


Good to hear that your timekeeping has been restored!

I would have though that "spread spectrum" (implying a continually 
changing random frequency) was definitely something to avoid for accurate 
timekeeping!  As you say, changing the HAL is not something to be 
undertaken lightly.

I wonder if you could check just the effects of the spread-spectrum being 
enabled or not?


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