Vista can't see my cd drive please help!

I recently replaced the power supply on my computer it all worked fine apart from when I tried to run a disk and realised that my cd drive isnt any where to be seen. So I did usual checks, wired properly and made sure it was showing in my bois which it is. I looked in device manager and its also not there, but i am running raid and it is saying “This device is not configured correctly. (Code 1)” But obviously I can’t reinstall without cd drive but is it the raid causing the problem with the cd drive. Please Help!!!