🚀 go-pugleaf

GTD/KAD <jdombeck@esslink.com> wrote:
>Greetings,
>
>Question:
>
>Does the Diamond Stealth S3 Vision 964 chip (2 meg, PCI) conflict with an 
>internal modem at Com 4, Irq 3? The card was purchased in 8/94.
>
>Some people have said that I am crazy, but I remember reading that they 
>conflict because something in the Stealth card with the S3 Vision 964 
>chip uses Com 4, or Irq 3.
>
>Do they conflict??
>
No, I don't think you're crazy. I had the same problem and had to move
the modem to COM3.  The Tech Reps at Micron, however, tell me I'd do better
having the Modem on COM2 to avoid conflicts between COM3 and COM1. For right
now I'm staying on COM3...it seems to be working fine over the past two months.
bob

In article <4gb9cn$ltg@news.esslink.com>, GTD/KAD <jdombeck@esslink.com> writes:
>Does the Diamond Stealth S3 Vision 964 chip (2 meg, PCI) conflict with an 
>internal modem at Com 4, Irq 3? The card was purchased in 8/94.
>
>Some people have said that I am crazy, but I remember reading that they 
>conflict because something in the Stealth card with the S3 Vision 964 
>chip uses Com 4, or Irq 3.
>
>Do they conflict??

[stuff deleted]

   While I'm fuzzy on the details (it's been a while), there IS a conflict
between COM4 and certain Diamond video boards.  Those boards used
extended I/O port addressing, and several port addresses on the board
ended with 0x2E8, which conflicts with the standard COM4 I/O address.  If
you take a look at the Diamond manual, it lists the I/O port addresses
used by the video board.


-- 
Mike Loewen			Center for Academic Computing
Email:	mcl8@psu.edu		The Pennsylvania State University
Phone:	(814) 863-4356		University Park, PA  16802
Office:	17 Willard Bldg.	http://ripsaw.cac.psu.edu/mloewen.html

In article <4gb9cn$ltg@news.esslink.com>,
   GTD/KAD <jdombeck@esslink.com> wrote:
>Greetings,
>
>Question:
>
>Does the Diamond Stealth S3 Vision 964 chip (2 meg, PCI) conflict with an 
>internal modem at Com 4, Irq 3? The card was purchased in 8/94.
>
>Some people have said that I am crazy, but I remember reading that they 
>conflict because something in the Stealth card with the S3 Vision 964 
>chip uses Com 4, or Irq 3.

I can't find the documentation, but I did have a Diamond Stealth manual that
listed the I/O ports used by the card.  I distinctly remember that 02E8h was
one of those ports.  So yes, there's a conflict.  No IRQ problem, though.
Most video cards either don't use an IRQ, or use 2d / 9d.  (I think the
Stealth had a jumper to enable or disable IRQ 2.)

raster@indirect.com

GTD/KAD <jdombeck@esslink.com> wrote:

>Greetings,

>Question:

>Does the Diamond Stealth S3 Vision 964 chip (2 meg, PCI) conflict with an 
>internal modem at Com 4, Irq 3? The card was purchased in 8/94.

>Some people have said that I am crazy, but I remember reading that they 
>conflict because something in the Stealth card with the S3 Vision 964 
>chip uses Com 4, or Irq 3.

>Do they conflict??

>I had to remove my modem and install it in my other system so that I 
>could use the modem.

>I'm considering getting another video card for my system with the modem 
>and I don't want to buy a card that won't work with my modem.

>I know that it *should not* conflict but others have had this same 
>problem and I was advised in an InterLink Hardware conference when I 
>first installed the modem that the S3 chip was a problem with Com4 and/or 
>Irq 3.

>I know it sounds crazy, but I remember being told about the conflict.

>Any help would be appreciated.

>Thanks,
>Jerry Dombeck
>jdombeck@esslink.com 

I do believe I remember reading something about this myself, but it
was in a manual for a different card - I think it might have been a
generic S3 card with 1MB DRAM.  One of the things I do for a living is
build clone computers and as a cost effective solution we offer a
generic S3 card, low price but still having the quick DOS/Windows
response of the S3 chip.  I think this problem has been fixed in newer
versions of this card.

Before going out and buying a new video card, you might want to
consider reconfiguring your modem to use a different COM port.

- Your mouse is more-than-likely using COM1.
- You probably have an existing COM2 port in your computer, though
  chances are its not being used.
- COM3 is not a good choice because it can conflict with the mouse.
  COM1 and COM3 both use IRQ 3.

My suggestion is to disable the existing COM2 port (if it exists) and
configure the modem for COM2.  There are two different ways to do this
depending on your computer.

1) Almost all newer computers, and most name brand computers both old
and new, have there COM ports, video, IDE, etc., built directly on the
motherboard.  Disabling the COM port can be simply changing a jumper
on the motherboard.  If this isn't the case, then there should be a
way to disable it through the computer's CMOS.

2) If your computer has an IDE/serial or serial card that has the COM2
port on it, then you can disable it by jumper setting on the card.

Hope this helps,
Rick Rew
rrew@richmond.infi.net

GTD/KAD <jdombeck@esslink.com> wrote:

>Greetings,

>Question:

>Does the Diamond Stealth S3 Vision 964 chip (2 meg, PCI) conflict with an 
>internal modem at Com 4, Irq 3? The card was purchased in 8/94.

>Some people have said that I am crazy, but I remember reading that they 
>conflict because something in the Stealth card with the S3 Vision 964 
>chip uses Com 4, or Irq 3.

>Do they conflict??

Yes, certainly on my machine a modem on COM4 wouldn't work when the
Win95 S3 drivers were loaded.  Commands could be sent *to* the modem
(I got it to dial out) but you get nothing back.  Move the modem to
Com3, and it works fine.

Slight twist though.  I've a Stealth 64 VRAM, which at the present
(and maybe forever?) there is no Diamond specific driver for.  I was
using the generic S3 Win95 driver.  I then found an S3 964 driver
meant for another S3 card (I forget offhand which one it was) and this
amazingly worked fine with the Stealth, gave a slightly better
performance (not enough to get excited about, mind) but didn't clash
with COM4.  

I only know all this because I was using the above driver when I put
the modem in on COM4, and had no problems.  I later reinstalled Win95,
and the driver got changed back to the generic S3.  And I spent
several hours puzzling over why my modem had stopped responding :(


--
Ian Baldock                     Computing Devices, St Leonards
Speaking as an individual,                     East Sussex, UK
not a Systems Manager                           (01424) 853481

Andrew Bell wrote in a related question:
>
> I have this problem with my Pentium Triton computer.
> I seem to have a conflict between my mouse and modem.
> I use the default com ports so cant be a conflict.
> I have a diamond stealth PCI and a Adaptec ISA card and i think
> that a conflict is beingf created.  I know there is a conflict coz when
> i run msd and type 'c' for com ports the mouse freaks out.
> Then when i exit and reenter msd it says no mouse installed.
> I have tried excluding the region specified by Diamond with no success.
> any ideas??
> thanx in advance
Just because you are using the default com ports does not mean that there is not an error.
If they are both default to com 1 - big problems. As for the diamond stealth boards; they
use the address typically employed by com 4. So this should not be a problem. Your best bet
is to make sure that the mouse is on com port 1 and your modem is on com port 2 and
further, that they have the correct interupts and addresses. To disable com 4 Look in your
system.ini file for where the irq's and base addresses for com port 2 are and then type the
same thing for com 4, but set disable. It should look something like this:

                       com4irq=disable
               							 com4base=disable

I would avoid putting the modem on anything but com 1 and com 2 because some tcp/slip
programs (like mine) will not recognize com 3 or com 4 modems and irq problems are likely!

good luck,

JD

GTD/KAD <jdombeck@esslink.com> wrote:

> Question:
> 
> Does the Diamond Stealth S3 Vision 964 chip (2 meg, PCI) conflict with an 
> internal modem at Com 4, Irq 3? The card was purchased in 8/94.
> 
> Some people have said that I am crazy, but I remember reading that they 
> conflict because something in the Stealth card with the S3 Vision 964 
> chip uses Com 4, or Irq 3.   Do they conflict??

Many video cards with S3 chips caused the conflict you mentioned.  Two
solutions:  

    Get the latest S3 drivers -- many manufacturers fixed the problem

   Move modem.  Com2 is a good choice, if you can disable any existing
serial port you have there (assuming its an internal modem).

Check out my modem page for a little more data.

Curt...



_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
         Curt's High Speed Modem Page:
 http://www.teleport.com/~curt/modems.html
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/     

> Slight twist though.  I've a Stealth 64 VRAM, which at the present
> (and maybe forever?) there is no Diamond specific driver for. 


When I checked the other day, I see Diamond has posted their new
Win31 and Win95 drivers.  About time!

See http://www.diamondmm.com

Best regards,
Curt...


_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
         Curt's High Speed Modem Page:
 http://www.teleport.com/~curt/modems.html
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/