I want to buy a USB.3 card for my Dell XPS 400 which runs under Windows 7.The card would plug into one of the PCIe slots and comes with a driver. However I am wondering if there is anything in my setup, such as support by the BIOS (I have the latest - A07) or some chipset on the MOB that will nix the chance of this working. The XPS 400 is, after all, a fairly old machine - certainly pre version 3 of USB.