So I just built a 6 280x rig, with a Gigabyte 990FX motherboard. It powers on just fine soon as I hit my powerswitch, but I cant get anything to display on my monitor. I have a newer Acer monitor with an HDMI cable connected to the first GPU, also have a keyboard plugged into the MBs keyboard port, and a mouse in the USB 2.0 port.

Ive tried a DVI cord as well, but the monitor still wont recognize that any cable is connected. I just need to boot into BIOS so I can start setting that up. So what else could I do to get the monitor to recognize?