It may be a glitch, but if you are looking at the Repair options, if you check the top button, will it continue with the repair? I think it looks for the System partition, but have no proof, and someone else may know better.
Any chance you could get a snipping tool picture of your disk management window and attach using the paperclip?
Does that board have any type of RAID monitor utility that can give you the status of the array?
I have only played with RAID a couple of times, but have never really run it. If you go through how you set it up, maybe someone will see something meaningful. You know, like you enabled the RAID SATA controller in the bios, then entered the RAID OPRom during boot .........