64bit Guest OS on virtualized nested ESXI

Hello folks,

i built my own nested environment, 2 nested ESXIs on 1 phyiscal host. The problem that i am not able to run any 64 bit Guest OS on the nested ESXIs.

put in your consideration that i enabled the VT and Exposed the NX/XD.

i'm using vSphere 5.1 ..

is there any work around or trick to make it possible ?!

thanks in advance