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Q185073: CardBus Controller Displays Error Code 29 on IBM ThinkPad

Article: Q185073
Product(s): Microsoft Windows 95.x Retail Product
Version(s): 2.0,2.1,2.5
Operating System(s): 
Keyword(s): kb3rdparty kbhw osr2 kbHardware
Last Modified: 08-MAR-2002

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The information in this article applies to:

- Microsoft Windows 95 OEM Service Release, versions 2.0, 2.1, 2.5 
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SYMPTOMS
========

If you are using an IBM ThinkPad notebook computer, the CardBus Controller
device may appear in Device Manager with an exclamation point in a yellow
circle. When you view the properties of the CardBus Controller device, the
following message may be displayed under Device STATUS

  The device has been disabled in the hardware. In order to use this
  device, you must re-enable the hardware. See your hardware
  documentation for details. (Code 29.)

In addition, PCI bus IRQ steering may be disabled, and the Use IRQ Steering check
box may be unavailable on the IRQ Steering tab in Device Manager.

CAUSE
=====

This issue can occur if both of the following conditions exist:

- You are using one of the following IBM ThinkPad models:

   - IBM ThinkPad 380XD

   - IBM ThinkPad 560X

   - IBM ThinkPad 770


- You are using version 4.00.1120 or later of the Pci.vxd file.

NOTE: This issue may be dependent upon the version of your computer's BIOS or
other hardware involved (for example, a docking station).


RESOLUTION
==========

To resolve this issue, contact the computer manufacturer for information about a
possible updated BIOS or another hardware-based solution.

To prevent this issue from occurring, do not install a version of the Pci.vxd
file later than 4.00.1119.

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

For information about how to determine which Windows 95 updates are installed on
a specific computer, please see the following articles in the Microsoft
Knowledge Base:

  Q161020 Implementing Windows 95 Updates

  Q145990 Windows 95 Update Information Tool (Qfecheck.exe)

For additional information about PCI bus IRQ steering, please see the following
article in the Microsoft Knowledge Base:

  Q182604 Description of PCI Bus IRQ Steering

The third-party product discussed in this article is manufactured by a vendor
independent of Microsoft; we make no warranty, implied or otherwise, regarding
this product's performance or reliability.

Additional query words:

======================================================================
Keywords          : kb3rdparty kbhw osr2 kbHardware 
Technology        : kbWin95search kbOPKSearch kbWin95OPKOSR25 kbWin95OPKOSR210
Version           : :2.0,2.1,2.5
Issue type        : kbprb

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