M.Pribik wrote: > Hello, > I installed from distro the file "kernel-smp-2.6.9-1.681_FC3.i586.rpm". > After that and after reboot the hyperthreading is always disabled. > In BOIS hyperthreading is enabled. What have I do more? I add the results of > some important commands below: You need to edit grub.conf to point it to the SMP kernel.