Hey everyone, I've been pondering this for awhile and I decided to shoot it over here for some advice from my peers. I'm running a Gigabyte EP45-UD3P and I have two Sapphire 4870 Vapor-X GPU's, but the problem is the cards and the motherboard. There are two PCI express slots on the mobo and the 4870's have large vapor fans so I'm currently running one and my X-Fi soundcard which fits between the two PCI express slots. If I try to add another GPU to the picture, the soundcard obstructs the fan flow of the first card to the point of it overheating. So now I have a 4870 just sitting in my drawer collecting dust and I was wondering should I just go with the onboard sound and run two crossfire cards or stick with what I'm doing and run one 4870 and the X-Fi card. What would you do? Any suggestions or advice would be greatly welcomed.