-----Original Message-----
From: Mike Watson <mike@D-M-G.DEMON.CO.UK>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Friday, November 28, 1997 06:56
Subject: [OT] Comm Port set ups


>Hi,
>
>I have a need to operate 3 comm ports on my pc, so bought a
>standard card that has FDD, HDD, game, LPT and 2 COMs. I disabled
>the FDD, HDD and game ports and configured the com ports to
>3 and 4 using jumpers on the board.
>
>Having installed the card, Win95 detected the new ports. All well
>and good, but in use, com3 stops com1 working and com4 stops com2.
>
>It must (surely) be possible to configure the system so that I can
>use at least three of the ports at the same time.


    Standard IRQ problem, you have to change the IRQs of two of the ports,
both com1 and 3 use by default IRQ4 and Com 2 & 4 use IRQ 3, you have to
change two of the ports to different IRQs in order to use them all at the
same time. Check your card to see if it has jumpers for IRQ setting. TTYL