disable the RAID controller. RAID 0 requires two equal sized disks at the very least and also requires that you format the disks as one, in other words you create the array so they are seen as one disk and format that "one" disk. you can't stripe a single disk. i don't have any specific knowledge of that board so i can't say much more.
i'm curious if when you say
Windows won't recognize the disc
you mean that it doesn't show up in "My Computer", that's because you need to format the drive. just go to control panel>administrative tools>computer management>disk management, find the diagram of the new disk to the right, it should say "unallocated" or something similar. right click on it and it should have an option like "partition", "new partition" or "partition wizard". that should guide you through partitioning and formatting it.