Q163331: Cirrus Logic Video Causes Event ID 21 on MIPS Computers

Article: Q163331
Product(s): Microsoft Windows NT
Version(s): WINNT:4.0
Operating System(s): 
Keyword(s): kb3rdparty kbdisplay kbsetup
Last Modified: 09-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Workstation version 4.0 
- Microsoft Windows NT Server version 4.0 
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SYMPTOMS
========

When running Windows NT Server or Windows NT Workstation 4.0 on MIPS-based
computers, the following errors will be logged in the event viewer:

  ID: 21 Source: cirrus
  A conflict has been detected between two drivers which claimed two overlapping
  memory regions. Driver cirrus, with device <\Device\Video0.Translated>,
  claimed a memory range with starting address in data address 0x28 and 0x2c,
  and length in data address 0x30.

  ID: 21 Source: cirrus A conflict has been detected between two drivers which
  claimed two overlapping memory regions. Driver Physical Memory, with device
  <.Translated>, claimed a memory range with starting address in data
  address 0x28 and 0x2c, and length in data address 0x30.

These errors occur on all NEC RISCSERVER computers.

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT version 4.0 We are
researching this problem and will post new information here in the Microsoft
Knowledge Base as it becomes available.

MORE INFORMATION
================

The third-party 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: Event cirrus NEC MIPS RISC prodnt
======================================================================
Keywords          : kb3rdparty kbdisplay kbsetup 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400
Version           : WINNT:4.0
Issue type        : kbbug
Solution Type     : kbpending

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