I am adding an Adaptec 1200A RAID card to build a RAID 1 mirror for my boot disk. When I add the card I am able to go into the Adaptec setup and create the array and copy the disk. On reboot I get a blue screen. Adaptecs web site suggests to install the card on the OS (Windows XP SP3) prior to building the RAID. When I add the card with no drives attached, while booting to the IDE controller on the motherboard I get another blue screen. These blue screens are gone before I can get any details. If I remove the card, the computer boots up fine. I tried to install in all of the available PCI slots to make sure that wasn't the problem. The computer is an Emachine T6524. Phoenix Award BIOS. I can't find much on editing the BIOS but I am guessing there is a conflict between existing motherboad IDE controller and the RAID card. I am not sure how to get around it.