Jerry Muller wrote: > Yup, they're all there. I guess the problem is with System Monitor > (graphical....) > > Thanks, This behaviour of "top" also confused me, at first. After buying our first shiny new dual dual-core opteron box, I noted only one cpu when I ran top. So I figured "gosh, I guess it's not running an SMP kernel" and checked /var/log/messages to see how many cpus appeared on boot. All 4 cores were detected and it showed that it loaded the smp kernel. That's when I dug into the man page for top and found the "1" key. :) Cheers,