Hi. I have received my RMA replacement yesterday and sent the old one back. The issue is that the new drive is doing a very strange and annoying noise but it functions properly. The broken drive didn’t do the noise and all my drives do not either.
Normal WD5000AAKS drive:
http://www.fileden.com/files/2008/3/18/1822005/WD5000AAKS-00YGA0.mp3
Newly RMAed 1TB Caviar Black drive:
http://www.fileden.com/files/2008/3/18/1822005/WD1001FALS-00E8B0.mp3