Enabling Intel Hardware Virtualization Feature in BIOS ?

Hi,

I am attempting to follow the instructions from Microsoft for Dell systems to enable the hardware virtualization feature of the E8400 CPU.  According to Intel, this feature is supported on the processor.  It is also required to deploy the XP mode of Windows 7.

I have an Inspiron 530S with E8400 processor and using latest BIOS firmware.  There is no option to enable this feature on the Setup screen. 

Has anyone else attempted this or found a solution?

Thanks !