In ESXi host 5.5, install ova file for CUCM 10.5, getting error as "not support Intel VT- x"

[BALAMURUGAN SINGARAM]

In ESXi host 5.5, install OVA file "cucm_10.5_vmv8_v1.9", try to boot the image , getting an error as below: please advice.

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Error message from localhost.localdomain: This virtual machine is configured for 64-bit guest operating systems. However, 64-bit operation is
not possible. This host does not support Intel VT-x. For more detailed information, see http://vmware.com/info?id=152. error 3/27/2016 5:19:19 PM
CUCM-PUB root

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[Jaime Valencia]

Are you running on supported HW????

[BALAMURUGAN SINGARAM]

Yes, we are using B200M4 blade and VNX5200 storage.