Microsoft KB Archive/228391

= HP Vectra Goes to Standby Mode When APM Is Enabled =

Article ID: 228391

Article Last Modified on 2/27/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition

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This article was previously published under Q228391



SYMPTOMS
When you enable Advanced Power Management (APM) support on your Windows 2000-based Hewlett-Packard Vectra VL8 computer, the computer may immediately switch to a power-saving mode. When you try to resume your computer, it may stop responding (hang).



CAUSE
This issue can occur if the computer's Basic Input/Output System (BIOS) is not Advanced Configuration and Power Interface (ACPI) compliant.



RESOLUTION
To resolve this issue, contact Hewlett-Packard to inquire about a fix for this issue.



STATUS
This behavior is by design.



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

216573 How Windows 2000 Determines ACPI Compatibility

Keywords: kbenv kbhardware kbprb KB228391

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