I think I can give you a few hints.  I had a setup the same as yours, I
could not get the 25 pin serial port to work, even with many different
combinations with the bios and win 95. So I bought an internal card with
2 more serial ports.  Using the jumpers on this card, I disabled one of
the ports, and assigned the irq setting for the second port to 7 (or9)
both free irqs in my system.  This forced windows to reconize my
hardware and not give it the same irq setting as either com 1 or com 2.
Now I had no hardware conflicts, A mouse on com1, modem on com2, and a
serial port on com3.

I have since had luck with the 25pin ports, you have to assign the
proper settings in the bios.  In my experience, win95,98 do a funny
thing in the device manager.  It will not let you put in custum irq
settings in any configuration......except 0008.  In that configuration
you can change a device address and its irq setting.  SO I have a system
were i could get com1 and 3 on different irqs (or com2 and 4)

Having said that, I smart guy once showed me how to put a resistor and a
diode in series with those jumpers.  This hardware change wound allow
devices to share irqs.....thats all the info I have on that right now.

Andrew




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