Well I sent them a message and they replied saying to use the second PCI-E x16 (orange slot that runs only at x4). Problem is that when a graphics card is in the first PCI-E x16, the second one is blocked off entirely. That really doesn't solve my problem at all.
Should I upgrade my GPU to a single slot card (like Galaxy's GTX 460 Razor or Power Color's Single Slot HD6850) and then use the sound card in the second PCI-E x4 slot?
Another thing I was looking at was the ASUS Xonar Essence ST, it has a PCI Interface. My question is, is it just exactly the same, or are there any issues with it? I read that somewhere that something between the ST and STX was different, but can't remember what.