On Wed, Jul 14, 2010 at 3:06 PM, David Dyer-Bennet <dd-b at dd-b.net> wrote: > On Wed, July 14, 2010 13:07, Victor Padro wrote: > >> I own a Xeon X3430 & X3440 and both have vmx extensions so the X3450, >> please recheck your BIOS config. >> http://ark.intel.com/Product.aspx?id=42929 > > The Intel page certainly says the X3450 has vt-x and vt-d. > > This system is a Dell Poweredge R310, if that helps anybody realize what's > going on. > > Okay, boot has gotten me into the BIOS, let's see... > > Under 'processor settings' we've got 64-bit Yes, Logical Processor > Enabled, Virtualization Technology Enabled, Execute Disable Enabled, > Processor 1 Family-Model-Stepping 06-1E-5, and it says again it's an Intel > Xeon X3450 @ 2.67GHz. > > I've looked in all the other BIOS categories, nothing vaguely related has > turned up. My past experience with DELL Poweredge (other models) has been > that the BIOS has one setting for virtualization technology, which must > indeed be enabled, but this one now is (and was when I installed the > current Centos installation). > > Seeing the Intel confirmation that it's supposed to be there is helpful, > though; it makes it easier to keep poking rather than giving up, since > pretty clearly it's *supposed* to be here. > > The flags from /proc/cpuinfo after this reboot where I checked the > virtualization setting in the bios are: > > flags : fpu tsc msr pae cx8 apic mtrr cmov pat clflush acpi mmx > fxsr sse sse2 ss ht syscall nx lm constant_tsc ida pni est ssse3 cx16 > sse4_1 sse4_2 popcnt lahf_lm > > David Dyer-Bennet, dd-b at dd-b.net; http://dd-b.net/ Are you checking the stats from inside the dom0 or a domU? What's the output of 'uname -a'?