Fixed my issue by selecting onboard graphics in Sytem Agent Configuration (vs Auto) rebooted, then reselecting Auto. All the while switching my display cables to view POSTs. In the end I was able to DISable CSM and post successfully. Profile lock ups...

Thanks for posting your issue with CSM UEFI lock ups. I just installed a new Z97-AR (bios v2012) and have run into exactly the same issue. My system locks when loading any profile with CSM "toggled". If I try to change CSM to disabled, Save and Exit,...