RHEV3 : host does not meet the cluster's minimum CPU level. Missing CPU features

Hi, I'm evaluating RHEV and have provisionned 3 blade servers (BL460) for this evaluation.

Installation of rhevm on one balde and the hypervisor on 2 others goes well.

However after followed evaluator guide (Lab1), I noticed that my 2 hypervisors are

marked as 'non operational' with message error at the bottom of the screen:

Host rhv3.demo.redhat.com moved to Non-Operational state as host does not meet the cluster's minimum CPU level. Missing CPU features

Those BL460 are Intel Xeon processor BL460c G1. Is there a way (something to do) to get them working?

Thanks in advance

Regards