I did a Win7 Pro build on a Gigabyte EP45-UD3P recently. Set up RAID zero on a pair of Seagate Barracuda 7200.10 drives (ST3250410AS to be exact). Was fine for a week or so then I got a SMART error. I cleared it but got another the next day. I pulled the drive and put in a spare. Used the Intel Manager to do do a rebuild. After a reasonable amount of time I came back to see a blue screen. Booted up and the system was running on the NEW drive with the original out of the mirror.
Subsequent attempts fail in a similar manner. Thanks in advance for any assistance!