I have an Alienware Aurora ALX a few years old with a Core i7 (first gen). Recently I got a 4-bay RAID enclosure and ordered three 3TB drives. I just received the second drive today. The eSATA connection is not working. It works fine with USB. In the BIOS eSATA is enabled. Is there any other changes I need to make in the BIOS? Windows makes a sound when I plug in the eSATA cable to the computer, but not when I plug it in to the enclosure after it's plugged in to the desktop. Could the cable be bad? I need to get a handle on this fairly quickly, so I can return the enclosure if that's where the problem lies. Thanks in advance for any help.