Hi 3 drives in a row bad very unlikely you need to run a test with WD data lifeguard tools if it passes the tests then the drive is fine you can get the program here. http://support.wd.com/product/download.asp?groupid=613&lang=en . You can check for a bios update just remember if you lose power or the update goes bad you can brick the board and have to have it serviced. Try a different Sata cable also.
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