"Ellis, Steve (COMPRINT S)" wrote:
>
> I used to see that all the time with old 286/386 systems, and it was a
> battery problem. What seemed to be happening was that, on it's own, the
> battery had just enough charge to keep the memory on the RTC chip alive, but
> not enough to power the oscillator in the chip that ticks the clock. When
> the PC is on, the chip is powered by the PC's power supply, so it runs
> normally. When you turn it off, time stands still. Replacing the battery
> almost always fixed the problem.

The time is saved (sort of) in CMOS, which may or may not be powered
from the same battery as the clock.  Thus the 'shutdown' time is
'remembered' on next boot.

Jeff Kell <[log in to unmask]>