Optiplex 760 SFF Virtualization

Hello,

   I purchased  an Optiplex 760 SFF motherboard from ebay. I got the motherboard to work but I can not get the Virtualization to turn on. I know that  on most motherboard the virtualization  turn on the bios. I do not see on that option on this  motherboard. I am puzzled if the bios pickups the virtualization information from the CPU and then displays the virtualization option on the bios because if that is  the case the CPU that I have  (Pentium Dual Core) does not support virtualization. I am thinking of buying a chip that supports virtualization but if this board does not support virtualization it  make not sense in buying a new chip.  Any feed back on this question is appreciated.