Can't Start Hyper V Machine as Hypervisor isn't running

Hello-

We are a VMWare shop and we ran our old VMWARE environment on IBM x3650 7979 's. I have a need for a hyper V machine so I loaded up WIndows Server 2012 R2. Installed hyper V just fine, but when I go to run a machine I get the "Can't start machine, the Hypervisor is not running" error. It must be something in the BIOS but nothing sticks out as being hypervisor related. A google search doesn't provide anything helpful. If anyone is familiar with these machines any help to get the hypervisor activated would be great.

Thanks