just built a new PC using a gigabyte 970a-ud3 AM3+ mobo. Used a crucial m4 64 GB SSD drive for the OS, loaded windows 7, drivers, etc., everything works fine. took my two samsung F3 500 GB HDD from my old PC, installed them into my new one and the don't appear in BIOS or in Windows 7. The HDD are formatted, filled with data and work just fine in my AM2+ mobo but the SATA 6 ports don't see them. The ports do see my DVD drive though. I left all the BIOS selection in their default mode but did check to make sure SATA 3GB support was enabled (it was). Anyone have any experience with this issue or thoughts on how to solve it? The new mobo has no SATA 3 ports.