Ron,
I recently helped a friend install a 33.6 modem into a PB
486/66 (not sure of model #), and his machine did have an
integrated 2400 modem already. It was not built into the
motherboard, but was a small (about 2" x 5") board attached to
the motherboard by a flat cable. We had to remove it in order to
unplug it, since it covered the cable end, but that's just a
matter of squeezing the plastic standoffs with a pliers and
lifting out the board.
We installed an Impression plug n' play modem ($37) into an empty
slot and it was detected by Win95 and drivers
installed from the modem's diskette. In your case you'll have to
remove your old modem in Windows after determining which Com port
it is on and set the new one up using the diskette that came with
it to configure it for the same com port/ IRQ, etc.
Look for a modem that has jumpers for manual configuration of
com ports/IRQs for your Win 3.x setup or, as in our case, one
that can be jumpered for manual or plug n' play setup. Also, I
recommend getting a retail boxed modem as it should come with a
setup/driver diskette and a manual which may be of some help.
Good luck,
Steve Dias

-----Original Message-----


Dear Subscribers:
     My computer is a Packard Bell 486DX running Windows 3.1.1
with a 9600bps
internal Modem.
Before starting I would like suggestions and
information on what to do and not do to help me through this
first time
experienc. I have been told that the modem may be integrated into
the
motherboard which will make things more interesting.
Thanks for your time and help
Ron Sisk