2 CPU support

[Anthony Joseph Deo]

Hi,

I have Enterprise linux WS installed on one workstation adn fedora core 2 on another.  Both machines are dual 
opteron systems yet it seems that only one proccessor is recognized on either system.  When I use top or look at 
the graphical system menu it seems to indicate that only one proccessor is present.  Is there a setting that I would 
have to change in order to get it to recognize both proccessors?

Any help would be greatly appreciated,
Anthony