dual cpus in windows 2000

[snowyowl]

I am having some trouble with dual cpus on Windows 2000. I am running dual slot 1 celerons. When I start my computer it shows 2 processors are detected. But in Windows, it doesn't show two processors in the task manager or the performance monitor. I went to the device manager and changed the driver to use ACPI Multiple processors, and I also tried MPS multiprocessors. Any suggestions? Thanks for any help.