Standby Feature Is Available on Computers with a Battery or ACPI

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This article was previously published under Q259623

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SYMPTOMS

The Standby command in Windows 2000 is not available on desktop computers without a battery, even if Advanced Power Management (APM) is correctly configured in the computer's BIOS and enabled in Windows 2000.

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CAUSE

The Standby feature is available only on APM-compliant computers that have batteries as an optional power source.

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STATUS

This behavior is by design

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MORE INFORMATION

The standby vector in Ntapm.sys is disabled on any computer that does not have a battery. APM on many desktop computers does not support this feature. However, the hibernate power-off and shutdown power-off features work. Standby is available on Advanced Configuration and Power Interface (ACPI) desktop computers.

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