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January 1996, Week 3

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Subject:
Re: Windows 95 with COM3 and COM4 Serial Ports
From:
Nick Demos <[log in to unmask]>
Reply To:
Nick Demos <[log in to unmask]>
Date:
Fri, 19 Jan 1996 11:05:27 -0500
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I believe the problem is an overlap in IRQ addresses.  Doesn't COM3 use
the same address as COM1and Com4 as Com2 (normally)?
 
NMD
 
On Thu, 18 Jan 1996, Steve Dirickson b894 WestWin wrote:
 
> <<Is there an update for Windows 95 to make COM3 and COM4 functionally
> equivalent to COM1 and COM2 serial ports?>>
>
> Could you clarify what this means? As far as I know, COM3/4 work just
> fine; in fact, the machine I'm typing on is talking to CIS even as we
> speak, using a modem configured as COM3 on IRQ 11. There is video
> hardware out there that has a conflict with the standard COM4 I/O address
> of 0x2E8 (ATI, S3, anything claiming 8514/A hardware compatibility), but
> that's a hardware issue, unrelated to the OS.
>
> Steve Dirickson         WestWin Consulting
> (360) 598-6111  [log in to unmask]
>

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