Currently I'm running two EVGA GTX 680's in the number one and three slots. Card one covers slot two. Slot four is accessible as well as the solo x8. I have loaded into slot four; BIOS recognizes it, lets the card be setup, W7U64 sees it, ID's the make and model, but kicks out the driver. I...
mwroobel, AR4E has 4 PCIe slots designated for multi vga systems that can be turned on and off, and there is one additional PCIe slot that is out of the loop. When you say it gets wonky; is that putting the HBA in the PCIe slots for vga or do you mean using the 8x slot that is out of the vga...