"Roy J. Tellason" wrote to "MIKE ROSS" (28 Oct 02  20:07:17)
 --- on the topic of "thinking about a new MB"

 RJT> MIKE ROSS wrote in a message to Roy J. Tellason:
 MR> Say, do PCI cards also share the cmos battery or something? Every
 MR> time I pull out this video card the clock needs a reset... don't
 MR> know why only the rtc, all the rest is okay.

 RJT> I don't think so,  but perhaps the connector has just enough slop in
 RJT> it that something's getting glitched,  as in bus lines getting shorted
 RJT> or something.  How old is your battery?  Usually the clock is the
 RJT> first thing to mess up when the battery is on the way out.

No, the battery is good. I leave that machine off for days at a time and
it boots right up with the correct time. However, just pulling the PCI
video card out and putting it right back in glitches the cmos. Nothing
else misbehaves and besides it's not really a problem if the card is
left in right?!...   Just curious.

I was guessing it had something to do with PnP programming on the card
itself being lost and that the PCI buss has a line running to the cmos
supply? Alternatively maybe the PCI slots set an ID bit in a flipflop of
the MB support LSI and pulling out the card clears it telling it to
check for new equipment at the next bootup?

 Mike
 ****

... "Press to test"    "Release to detonate"

--- Blue Wave/DOS v2.30