2012 27" iMac(late) won't boot to Thunderbolt Drive
Got a new 2012 27" iMac and I can't get it to boot to my Thunderbolt Drive. I can use my 2011 iMac and 2011 MBP and it boots to the Thunderbolt Drive just fine. Thunderbolt drive is a Little Big Disk SSD drive.
After start up I get a chime, white screen then a cycle with a line through it then about 30 seconds later the iMac turns off. Any Ideas?