On Thu, 2008-05-29 at 14:14 -0400, Johny Kadarisman wrote: > Hmm... pretty strange, I change grub menu.lst, and pass 'noht' > but, it still showing the 2 'fake' cpu's. > Try "ht=off" There are a couple of kernel cmdline params which differ slightly between 32 and 64 bit versions.