2000 and dual processors.

[Ayman Altounji]

Had the same problem and resovled by Entering BOIS , at Configuration Utility Welcome screen press Control A to invoke advanced mode after configuring go to view edit datails go to APIC setting press enter and change to FULL TABLE or FULL TABLE MAPPED if you want server to behave like a workstation , save and restart, go to device manager , computer, properties and select mps multiprocessor and restart, let me know how this works for you like it did for me

[Ayman Altounji]

Found this for you, Configure the server hardware to the correct the "APIC Mode" settings. You must start System Configuration and press 'CTRL a' at the first menu after selecting F10 during boot. This activates "Advanced Mode". Then enter System Configuration itself and follow the prompts to complete a basic configuration load. Select to "Review" the settings and then pick "View/Edit Details" from the menu. Look down the list to find "APIC Mode". Press enter on this selection and select "Full Table, Mapped" (or "Full Table" if only choice, depends on specific system). Once this has been done, exit and save changes.
Then go into Computer Management, Device Manager, open up the "Computer" entry, right click on the entry under that (ACPI or something similar) and then select Properties. Go to the Driver tab and click Update Driver. Then pick "Next" and mark "Display list..." then "Next" again. Pick "Show all .." and pick the appropriate type from the list. For all current Compaq servers "MPS Multiprocessor" or "ACPI Multiprocessor" will work. For some much older models "Compaq SystemPro or Compatible" would work. Worked for me