On Fri, Jan 31, 2003 at 04:02:37PM +0000, Stephanie Boyd wrote: > ( Apparently this > is because the master crystal is often uncalibrated, so the clock > was advancing at the wrong rate.)
The hardware RTC relies on a 32.768kHz crystal. The vast majority of 32.768kHz crystals are designed for digital watches, and rely on the wearer's body heat to keep them at a reasonably constant temperature. When they are used in a PC, the temperature is all over the place, therefore so is the crystal frequency, and thus the clock. The other crystals used in a PC don't have such a problem because (a) they're only used when the PC is on and (b) they operate at a much higher frequency, so the chunk of quartz is cut to a totally different shape which is less temperature sensitive. > "The best Windows accelerator is that which works at 9.81m/s2 " Like it... reminds me of "*Any* car can be made to do 0-60mph in under 3 seconds - allow me to demonstrate with yours." Pigeon -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
