[time-nuts] M$-Vi$ta-compliant PC RTC clock card?

Rob Kimberley rk at timing-consultants.com
Thu Sep 20 07:26:12 EDT 2007

One factor to remember about good ol' PCs is that not all of the timing
problem is down to the RTC. A lot of timing errors are down to Interrupts. A
busy PC can lose 100s of milliseconds a day as a result of Interrupt

Personally I don't worry about the base accuracy of the PC (RTC or other),
and make sure I'm running NTP linked to a good reference source.

Rob K  

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of GandalfG8 at aol.com
Sent: 20 September 2007 11:49
To: time-nuts at febo.com
Subject: Re: [time-nuts] M$-Vi$ta-compliant PC RTC clock card?

); SAEximRunCond expanded to false
Errors-To: time-nuts-bounces+rk=timing-consultants.com at febo.com RETRY

In a message dated 20/09/2007 08:24:18 GMT Daylight Time,
robert.atkinson at genetix.com writes:

Being a  hardware kind of guy, my approach would be a little different.
Why not  remove the 32.768kHz crystal and feed the existing RTC with
32.768kHz  divided down from a decent oscillator?
Hey, I just thought, maybe there is  a market here.

Maybe there is:-)......

time-nuts mailing list -- time-nuts at febo.com To unsubscribe, go to
and follow the instructions there.

More information about the time-nuts mailing list