Close but not quite... COM1 & COM3 normally share IRQ 4, COM2 & COM4
normally share IRQ 3.
Try setting your modem to IRQ 7, in most cases you can 'borrow' this
IRQ from the printer port.
You can also try assigning IRQ 12 to the PCI / Auto and un-assigning
IRQ 10 or 11.

Richard Quilhot, C.N.A.
[log in to unmask]

-----Original Message-----
From my failing (biological, not silicon) memory:

COM1 and COM3 are the same physical device (as are COM2 and COM4).
You
can't use both at the same time.  If your modem is internal, it's
always
on, even if offline, so you can't use another device on COM1.  The
brute-force workaround is:  change your modem to COM4 --if you have
another
device on COM2 or COM4 (e.g., a serial mouse), you'll still have the
same
problem.
<snip>
At 08:53 PM 01/04/1999 -0500, you wrote:
>I was not using my COM1 port until just recently when I acquired a
H/PC with a
>docking cradle, which comes with a desk top sync program. (CE2
operating system)
>I found that my COM1 was disabled in my BIOS / PERIPHERALS setup, so
I enabled
>it, and immediately started to get conflicts with my modem on COM3. I
have tried
>to work around it, without success. I first started this process
under W95, and
>then upgraded to W98. Same problem with both platforms.
>
>Here are my vital statistics;
>
>
>COM3       MODEM
>Can set to COM3 or COM 4
>IRQ 3, 4, 5, or 7
>
>COM1
>Can be set to IRQ 3 or 4
>
>My system properties are reporting the following IRQ usage.
>
>
>0=SYSTEM TIMER
>1=KEYBOARD
>2=PROGRAMABLE INTERRUPT CONTROLLER
>3=COM2
>4=COM4
>4=COM1
>5=AWE64 16 BIT AUDIO
>6=FLOPPY
>7=PRINTER PORT
>8=SYSTEM CMOS RTC
>10=IRQ HOLDER FOR PCI STEERING
>10=RAGE II + (ENGLISH) DIRECT X
>11=IRQ HOLDER FOR PCI STEERING
>11=INTEL PCI BUS UNIVERSAL HOST CONTROLLER
>13=NUMERIC DATA PROCESSOR
>14=INTEL BUS MASTER IDE CONTROLLER
>14=PRIMARY IDE CONTROLLER
>15=INTEL BUS MASTER IDE CONTROLLER
>15=SECONDARY IDE CONTROLLER
>
>For the moment, I am going into System Properties, and disabling one
to
get the
>other working. Obviously this is a pain and I would like to have both
of them
>working seamlessly.
>
>I would appreciate any suggestions on what I can do to be able to
achieve
this.
>
>
>Thank you in advance for any help offered.
>
>Doug Collins


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