[Users] VMX validation failing

Hi, We got two PowerEdge 2950 out of production and I'm trying to add them to the DC just to get extra CPU and RAM but though the X5450 xeons have VMX, ovirt fails to install on the hosts with the error: Failed to execute stage 'Setup validation': Hardware does not support virtualization. I've searched the web and found a tip in vdsm-developer about updating vdsm-bootstrap but didn't work for me. Package version in the engine are: bea-stax-api.noarch 1.2.0-4.el6.centos.alt @ovirt_test glusterfs.x86_64 3.4.0-8.el6 @ovirt-stable glusterfs-libs.x86_64 3.4.0-8.el6 @ovirt-stable jboss-as.x86_64 7.1.1-11.el6 @ovirt-stable jpackage-utils.noarch 5.0.0-7.el6.alt @ovirt_test maven.x86_64 3.0.4-1.el6.alt @ovirt_test otopi.noarch 1.1.2-1.el6 @ovirt-stable otopi-java.noarch 1.1.2-1.el6 @ovirt-stable ovirt-engine.noarch 3.3.1-2.el6 @ovirt-stable ovirt-engine-backend.noarch 3.3.1-2.el6 @ovirt-stable ovirt-engine-cli.noarch 3.3.0.4-1.el6 @epel ovirt-engine-dbscripts.noarch 3.3.1-2.el6 @ovirt-stable ovirt-engine-lib.noarch 3.3.1-2.el6 @ovirt-stable ovirt-engine-restapi.noarch 3.3.1-2.el6 @ovirt-stable ovirt-engine-sdk-python.noarch 3.3.0.6-1.el6 @epel ovirt-engine-setup.noarch 3.3.1-2.el6 @ovirt-stable ovirt-engine-tools.noarch 3.3.1-2.el6 @ovirt-stable ovirt-engine-userportal.noarch 3.3.1-2.el6 @ovirt-stable ovirt-engine-webadmin-portal.noarch 3.3.1-2.el6 @ovirt-stable ovirt-engine-websocket-proxy.noarch 3.3.1-2.el6 @ovirt-stable ovirt-host-deploy.noarch 1.1.1-1.el6 @ovirt-stable ovirt-host-deploy-java.noarch 1.1.1-1.el6 @ovirt-stable ovirt-image-uploader.noarch 3.3.1-1.el6 @ovirt-stable ovirt-iso-uploader.noarch 3.3.1-1.el6 @ovirt-stable ovirt-log-collector.noarch 3.3.1-1.el6 @ovirt-stable ovirt-release-el6.noarch 8-1 @ovirt-stable postgresql-jdbc.x86_64 8.4.701-8.1.el6.centos.alt @ovirt_test python-kitchen.noarch 1.1.1-1.el6.centos.alt @ovirt_test vdsm-bootstrap.noarch 4.13.0-11.el6 @ovirt-stable Regards,