Starting with Windows 2000, the Support Tools on the Windows CD-ROM have contained Apmstat.exe, which is used
to determine the APM status of your computer.
NOTE: The Windows XP and Windows Server 2003 Support Tools also contain Apmstat.exe.
When you type Apmstat /?, you receive:
-v for vebose mode
The possible outputs include:
This is a multi-processor machine, APM does not work on MP machines, at all.
This is an ACPI machine, APM is NOT relevent on this machine.
This machine has an APM BIOS on the AutoEnable list, and the APM BIOS appears to be on. APM should have been autoenabled at install.
However, APM may have been manually disabled. Check the APM tab in the Power applet in the Control Panel.
This machine has an APM BIOS present that looks OK, and it is not on the list of machines known to have APM problems.
Check the Power applet in the Control Panel to see if APM is enabled.
NOTE: The last status will be displayed if the operating system cannot determine the computer's APM compliancy.
The following tips are relavant to APM:
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2832 » You can't get your Windows 2000 computer to resume from Standby?
4637 » How do I cause my Windows XP computer to power down when I shutdown?
4654 » What is hibernation and how do I enable it?
5031 » How does Windows XP install Advanced Power Management (APM) support?
5177 » How do I shutdown a Windows 2000 Terminal Server?
5273 » What should I do to prepare to upgrade from Windows 98 or Windows Millennium Edition (Me) to Windows XP?
6514 » How do I shutdown without receiving 'It is now safe to turn off your computer'?
6668 » Your Windows 2000 laptop won't enter C3 processor power-saving state?
6877 » After you install Terminal Services on a Windows 2000 server, the computer still enters Standby or Hibernation?