🚀 go-pugleaf

Molo wrote:
> 
> Alex Cory wrote in message
> <92b7b502.0211110903.6b3d73a4@posting.google.com>...
> >Hi, Repert
> >
> >> The clock on one of my machines is running slow. The machine is on all
> the
> >> time and I have replaced the BIOS battery.
> >>
> >> Any ideas?
> >
> >You have to ways to fix this problem:
> >
> >1) Buy a new motherboard (quite expensive and doesn't guarantee the
> >result because the clock on the new board may be slow too).
> >2) Download one of the time synchronization programs. This will keep
> >your clock correct. I can recommend Chronograph
> >(http://www.altrixsoft.com) There are freeware version and more
> >powerful snatdard version. I have been using it for two years and it
> >works good for me.
> >
> >Best regards,
> >Alex Cory
> 
> Some crystal generated clock rate with tolerant, either 0.00000001%
> tolerant, so get another piece of crystal instead.

You have the right idea, but they are nowhere near that accurate.  Xtal
accuracy is typically measured in parts per million and range from about
200 ppm (0.02%) for a typical cheap xtal to 20 or even 10 ppm for a
really good one without any temperature correction.  Temperature
corrected osciallators can get down to 1 ppm accuracy and stability. 
But realize that 1 ppm is still only 0.0001%.  The number you wrote
would be measured in parts per trillion.  :)

-- 

Rick "rickman" Collins

rick.collins@XYarius.com
Ignore the reply address. To email me use the above address with the XY
removed.

Arius - A Signal Processing Solutions Company
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