Power Management status diagnosis of Windows2000 secret weapon

First, brief

There is a lot of information on the setup and use of the Advanced Power Management program APM (that is, the abbreviation for the Advanced), as well as the history and evolution of the development process, so there is no need to repeat that content here. The only explanation to be explained is: APM refers to the management function, early in the operating system does not have the corresponding operating interface; Later, especially from the Windows95, APM was applied to a large number of microcomputers, then there is an urgent need for the corresponding operating interface, so that ordinary users can easily carry out power management settings , which introduces the ACPI (Power Management Advanced Configuration Interface). Most computers can now support both APM and ACPI.

In Windows2000, APM supports battery-powered management and can introduce a running machine into a standby state to conserve electricity. or revert to use from the wait state. Such things are familiar to everyone and no new ideas. This is a command-line based tool that enables you to diagnose the state of advanced Power Management in the command line state, and to use these status information to help you identify and troubleshoot power management issues.

In Windows2000, the operation related to power management, there are mainly the following ways: A.bios settings. B. Registry settings. C. In the Control Panel, set up using the Advanced Power Management Configuration interface. In fact, with the interface settings and to modify the registry settings, the effect of the two is the call ―――-in order to facilitate those who do not have the ability to edit the registry users, the introduction of the graphical interface, that is, the Advanced Power Management Configuration interface. Since advanced power management involves BIOS setup and registry settings, the Power status diagnostics lists the power management-related setup information in the BIOS and the corresponding setup information in the registry in the report file that it generates.

Ii. Grammar and application

In the syntax of all support tools, the syntax of the tool is the simplest, with a total of only one command and two switches. The complete syntax is as follows:

Apmstat [-v] [-?]

Command and Parameter description:

Apmstat

The name of the command file, the part that must be used, not omitted.

-V

Displays the results of the settings for power Management: included in the BIOS and in the registry, information related to power management.

-?

Displays the syntax and help information used by the command.

The command line should first be called Open command-line console: cmd, after opening, type the command following the system prompt: Apmstat–v and then enter. You can get the appropriate display information. The following is a screen report that I copied after I executed the command on my own machine and displayed the results: (the Chinese I added)

C:\Program Files\Support Tools>apmstat-v

This computer appears to have a APM legal HAL this computer's APM has a legitimate hardware abstraction layer

This machine has a APM bios present that looks OK, and it is

Not on the ' list of machines known to have APM problems. This machine has an APM-related BIOS setup OK and no APM problem is found in the list.

Check the Power applet in the controlling panel to find if APM is enabled can be detected in a control panel.

APM Registry Data Dump APM Registry database image

Major = 0001 Minor = 0002

Installflags = 0007

Code16segment = f000 Code16offset = 8560 dataseg = FDFC

Signature = APM

Valid = 0001

Detection log data: The data in the detected log file

4c 4f 47 31 00 00 00 00 00 00 00 00 00

D E T L O G 1

C:\Program Files\Support tools> (end of screen info)

If you find a problem with power management, it will appear in these reports. The registry data image can be used as a reference for modifying the registry.