I have an ASUS X79-DELUXE motherboard, and am trying to fit in the Xonar DSX PCIE 7.1 Audio Card, as well as the two 780's.
The 780's are in slots PCIEX16_1 and PCIEX16_4 like the manual suggests. But doing it this way blocks both the PCIEX_1 and PCIEX_2 slots for the sound card.
Any suggestions would be great, I don't know if I could (or if it would even fit) moving one of the GTX 780's to the PCIEX16_2. They would be on each other and I'd be really concerned about overheating.