Hi everyone
I am running a VM in Freenas 11.1U5 on a Gen8 Proliant server with the latest version of Centos running on it. I am sure the CPU supports VT-x and I have enabled it in the Bios as can be seen here (GUI-->Shell: )
[root@tiamat ~]# grep VT-x /var/run/dmesg.boot
VT-x...