When I installed Win2K Pro on my BP6 (dual-proc Celeron, as you well know), the HAL that was put in place was MPS Multiproc PC. I'd like to change this to ACPI Multiproc PC, if possible - Abit's site ...

Since your computer isn't ACPI compliant that means you don't get the convenience of automatic hardware powerdown after you shutdown Windows. What motherboard do you have? Sometimes a BIOS update can ...