When I have all 3 of my hard drives attached I get a 1 hard drive that is "disconnected or failed" as shown by my RAID utility. I switched the cables around and realized that the "failed" drive message would move to other drives when I plugged them in. For example you have drive A, B and C I narrowed it down the drive A being the drive shown to be failing. So I unplugged drive C and now drive A is miraculously working if I plug drive C back in. Hey Hey one drive has failed. Any ideas what's causing the failure? Should I test my PSU?