Look in the motherboard CMOS Setup. There may be a setting to change the 4-second (sometime it takes longer on some motherboards) wait to “Instant Off.”
Does Win2k support Advanced Configuration and Power Interface (ACPI)? Yes. See:
MS KB Articles Q216573, How Windows 2000 Determines ACPI Compatibility, at http://support.microsoft.com/support/kb/articles/Q216/5/73.ASP
And Q197055, Disabling ACPI Support in BIOS Results in Error Message, at http://support.microsoft.com/support/kb/articles/Q197/0/55.ASP?
As explained in the second reference, Win 2K can be installed with or without ACPI support and must be reinstalled to change the Hardware Abstraction Layer (HAL) from one form to the other. Larry