I recently purchased the mac pro in my signature, and powering on for the first time (without installing the extra 1TB hdd and 16GB of RAM from OWC) brought up the infamous question mark. I've tried booting up by holding "c" and starting up from the CD. Raid Utility status is "good" but there are no drives available. I've also tried the Apple Hardware Test which passed without error. I then tried removing the 300GB SAS which came with the computer and installing the 1TB but that didn't work either. Any ideas? I also have Apple Care. Any help is appreciated.