I set up a RAID 0 with 2 500 gb WD caviar hard drives. They have been running beautifully for the past year. However recently 1 of my hard drives is having errors. I think the hard drive is dying so I want to RMA it but i need to run diagnostics on it first. I have backed both an image of my current 1 tb array and my docs. Is there a way to unRAID the drives, run the diagnostic, reRAID the drives and boot back into windows? Or do you have any suggestions to diagnose my hard drive without using the the WD tools? I am using an Asus Maximus formula, 2 WD Caviar SE16 500GB Hard Drives raided using the onboard intel controller.