Windows 98SE In APM Mode

[VacuumTubeEra]

I have just installed Windows 98SE on my IBM 380Z Laptop (Pentium II, 233 MHz, 96 Mb RAM). Following IBM's recommendation for this machine, I took the steps needed to install in APM mode instead of ACPI mode. What capabilities are not available with this operating system in APM mode compared with ACPI mode?
Thank You

 

[JeanW]

ACPI (Advanced Configuration and Power Interface) is an open industry specification co-developed by Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba.

Maybe that's why IBM recommended APM....

The specification enables new power management technology to evolve independently in operating systems and hardware while ensuring that they continue to work together.

ACPI is the newer technology and can do more than APM. However it is still experimental, especially in 2.4 kernels.

Problem is : You can't use both ACPI and APM. Quoting from the kernel documentation:

"If both ACPI and Advanced Power Management (APM) support are
configured, whichever is loaded first shall be used."


Out of mine 'problems'-database :

Power Management Compliance (APM Versus ACPI)
The system configuration process differs depending on the type of power management scheme used by the operating system. Microsoft® Windows® 95 and Windows NT use Advanced Power Management (APM). Windows 2000 uses Advanced Configuration and Power Management (ACPI). Windows 98 can be either APM- or ACPI-compliant, depending on the version you are using. If you have Windows 98, you can determine which power scheme you have by accessing the System devices list in the Device Manager.

For Windows 98 with APM, click Start—> Settings—> Control Panel—> System—> Device Manager—> System devices.

For Windows 98 with ACPI, click Start—> Settings—> Control Panel—> System—> Hardware—> Device Manager—> System devices.

Either APM or ACPI options will appear at the top of the System devices list.

To adjust the configuration settings for APM operating systems, such as Microsoft Windows 95, Windows 98 with APM, or Windows NT®, you can use the System Setup program.


ACPI operating systems, such as Windows 2000 and Windows 98 with ACPI, automatically configure most of the setup options available in the System Setup program. In such cases, the operating system overrides system setup options entered through the System Setup program. One exception is the External Hot Key option, which you can disable or enable only through the System Setup program. For more information on configuring features for these operating systems, see your Microsoft Windows Help.
NOTE: For ACPI operating systems, the System Setup program is accessible only during the system boot routine.

You can use the System Setup program as follows:

To set or change user-selectable features — for example, your password or power management features


To verify information about your computer's current configuration, such as the amount of system memory
For some setup options, you must reboot the computer before any changes take effect. Changes for other options take effect immediately.

NOTE: If you change an option that is activated by rebooting, the System Setup program displays the setting you selected rather than the setting currently in effect. You must reboot for the new setting to take effect.

After you set up your computer, run the System Setup program to familiarize yourself with your system configuration information and optional settings. Dell recommends that you write down the information for future reference.

NOTE: If the computer uses the Microsoft Windows 95 operating system, you can also use the Dell Control Center to view and change the system configuration. Access the Dell Control Center from the Dell Accessories folder.

HTH
John