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Q160016: Parity Errors with DirectX Video Drivers

Article: Q160016
Product(s): Microsoft Windows 95.x Retail Product
Version(s): WINDOWS:95
Operating System(s): 
Keyword(s): osr2 win95kbfaq
Last Modified: 13-JUN-2001

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The information in this article applies to:

- Microsoft Windows 95 
- Microsoft Windows 95 OEM Service Release, version 2.0 
- Microsoft Plus! for Windows 95 
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SYMPTOMS
========

After you install DirectX video drivers, you may receive the following error
message when you start your computer:

  System Error
  Memory parity error detected.
  System halted.

CAUSE
=====

This behavior can occur if all of the following conditions are true:

- Your computer uses a chip set that checks parity on video memory.

- The video memory on your video card is not parity memory.

- A memory-mapped video driver such as a DirectX-enabled video driver is
  installed in your computer.

RESOLUTION
==========

To prevent this issue from occurring, do not install a memory mapped video
driver.

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

For additional information about the video memory capabilities of your video
adapter, refer to your hardware documentation, or consult your hardware vendor.


REFERENCES
==========

For additional information about parity error messages in Microsoft Windows,
please see the following articles in the Microsoft Knowledge Base:

  Q93521 Parity Errors in Windows 3.x

  Q134503 Parity Error Messages May Indicate Bad Memory

Additional query words: win95x plus95 direct-x dx dx6

======================================================================
Keywords          : osr2 win95 kbfaq
Technology        : kbWin95search kbGamesSearch kbPlusSearch kbOPKSearch kbWin95 kbPlus95
Version           : WINDOWS:95
Issue type        : kbprb

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