I have an answer for you! I ran into the same problem...the EXACT same problem. I also have the eVGA 780i FTW with the PCI-E XFI soundcard. Here is the solution. Use one of the other slots that is designated for a x16 slot for your x1 card. It works like a charm. I was very close to returning the board just because the slot was covered and I really wanted to use that soundcard. Lucky for me I found that solution. I have been running it that way since about 2 weeks after the FTW mobo came out.