DOCUMENT:Q121849  08-AUG-2001  [winnt]
TITLE   :ATI Video Fails with Adaptec 174x SCSI Driver Present
PRODUCT :Microsoft Windows NT
PROD/VER:
OPER/SYS:
KEYWORDS:

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3.10

WINDOWS

kbnetwork kb3rdparty kbbug3.10 kbfix3.50

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The information in this article applies to:

 - Microsoft Windows NT Server version 3.1 
 - Microsoft Windows NT Workstation version 3.1 
 - Microsoft Windows NT Advanced Server, version 3.1 
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SYMPTOMS
========

A computer with an EISA bus running Windows NT version 3.1 may not be able to
start the ATI video adapter driver (any type) with an Adaptec 174x adapter
present, and the following messages may appear in the Event Viewer:

   Event ID: 7026 Source: Service Control Manager Type: Error
   Description: The following boot-start or system-start driver(s) failed to
   load: ATI

   Event ID: 22 Source: ATI Type: Error
   Description: A conflict has been detected between two drivers which claimed
   two overlapping IO port regions. Driver Aha 174x, with device
   <\Device\ScsiPort0.Translated>, claimed an IO port range with starting
   address in data address 0x28 and 0x2c, and length in data address 0x30.

   Event ID: 22 Source: ATI Type: Error
   Description: A conflict has been detected between two drivers which claimed
   two overlapping IO port regions. Driver ATI, with device
   <\Device\Video0.Translated>, claimed an IO port range with starting
   address in data address 0x28 and 0x2c, and length in data address 0x30.

CAUSE
=====

This problem occurs due to the ATI adapter using EISA address space for its
extended registers, thus conflicting with devices situated on or beyond slot 4
on the EISA bus.

RESOLUTION
==========

To correct this problem, do one of the following:

   - Place the Adaptec 174x SCSI adapter card on a slot other than slot 4; for
   example, slots 1 to 3.

   -or-

   - Upgrade to Windows NT Workstation or Windows NT Server version 3.5.


STATUS
======

Microsoft has confirmed this to be a problem in Windows NT and Windows NT
Advanced Server version 3.1. This problem has been corrected in Windows NT
Workstation and Windows NT Server version 3.5.

The Adaptec and ATI products discussed here are manufactured by vendors
independent of Microsoft; we make no warranty, implied or otherwise, regarding
these products' performance or reliability.

Additional query words: prodnt 3.10 3.50

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Keywords          :  
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW310 kbWinNTSsearch kbWinNTS310 kbWinNTAdvSerSearch kbWinNTAdvServ310 kbWinNTS310search kbWinNT310Search kbWinNTW310Search

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