"Stop error 0xA5"error message when you dock a Windows 2000-based portable computer to a docking station while the computer is running (840172)

SYMPTOMS

When you dock a Microsoft Windows 2000-based portable computer to a docking station while the computer is running, the computer quits unexpectedly, and then you receive the following error message on a blue screen.

A problem has been detected and Windows has been shut down to prevent damage to your computer...
Technical information:

*** STOP: 0x000000A5 (0xParameter_1, 0xParameter_2, 0xParameter_3, 0xParameter_3)
ACPI_BIOS_ERROR
The ACPI Bios in this system is not fully compliant to the specification. Please read the Readme.txt for possible workarounds, or contact your system vendor for an updated bios.

The bios in this system is not fully ACPI compliant. Please contact your system vendor for an updated bios. If you are unable to obtain an updated bios or the latest bios supplied by your vendor is not ACPI compliant, you can turn off ACPI mode during text mode setup. To do this, simply press the F7 key when you are prompted to install storage drivers. The system will not notify you that the F7 key was pressed--it will silently disable ACPI and allow you to continue your installation.

Note The four parameters in this error message may vary, depending on the cause of the Stop error.

When you insert a PC Card in the PC Card slot of a portable computer or of a docking station, Windows 2000 may not recognize the PC Card.

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version            Size    File name
   --------------------------------------------------------
   15-Apr-2004  00:22  5.0.2195.6920     163,344  Acpi.sys

MORE INFORMATION

For additional information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages

824684 Description of the standard terminology that is used to describe Microsoft software updates