Microsoft KB Archive/228334

= IBM ThinkPad Always Displays AC Power Icon =

Article ID: 228334

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Windows 2000 Professional Edition

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This article was previously published under Q228334



SYMPTOMS
When you place your computer on battery power after you upgrade your IBM 600-series laptop computer to Windows 2000 Professional, the icon for system power status on the right side of the taskbar does not change.



CAUSE
This issue can occur if the Basic Input/Output System (BIOS) does not properly implement Advanced Configuration and Power Interface (ACPI) functionality.



RESOLUTION
To resolve this issue, contact IBM to inquire about the availability of a fix for this issue.



MORE INFORMATION
For additional information about Windows 2000 ACPI support, please click the article number below to view the article in the Microsoft Knowledge Base:

216573 How Windows 2000 Determines ACPI Compatibility

Keywords: kbhardware kbprb kbui KB228334

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