Appreciate it Kevin! I also appreciate the info on the lack of a RAID controller in non-factory-RAID-equipped W520 laptops. My W520 doesn't have the ability to enable it just like the other poster. My system will probably be approved for return to Lenovo to get this and one other option issue sorted out. If so, then I'll open up my W520 to take a picture of the writing on the chipset prior to boxing it up. That should remove any/all doubts.