Getting error while installing VC Server 5.1

Hi,

I am trying to install VC Server 5.1 inside VM Ware work station 9, but getting error as processor not supported. ( Screen shot attached for reference).

Can anyone please tell me why I am getting this error while I have installed other components like Esxi 5.1, VC Client successfully.

My Host's config are :

Processor : Core i7 3rd Gen

RAM ; 16GB

And I am using Win Server 2008 Data Center inside WorkStation to install VC Server 5.1

Thanks

Ashish