Dual Processor in XP

[Richard]

I have two P3 866's in my system. When I go to System
Properties > General Info it only lists 1 processor.
When I go to System Properties > Hardware > Device Mngr >
Processors it lists 2. I would certainly benefit from a
faster PC (as with everyone) and want to make sure I'm
getting the benefits of both processors. Is there a way
to check this? Or should I just assume since it
recognizes them, that it's using both?

Thanks!

Richard