I have a mobo issue (or not). 1. My optical drive (ASUS DRW-1814BLT) won't boot any disk but Windows XP when it's connected on ICH9R sata port and raid function is enabled. If raid function is disabled everything is ok. I have to mention that even the optical drive name is not correct displayed whet raid function is enabled. And again, all it's ok with raid function disabled. Why all that? Is this all right? 2. In boot sequence when recognize raid disks (connected on ICH9R), at the end of detection it says that AHCI BIOS IS NOT INSTALLED. Is this a problem?