http://arstechnica.com/tweak/win2k/xp-versions-1.html
"On the hardware scene, only Professional supports Symmetric Multi-Processing (SMP for up to two processors). That's right, Home Edition does not support more than one processor."
"On the hardware scene, only Professional supports Symmetric Multi-Processing (SMP for up to two processors). That's right, Home Edition does not support more than one processor."