Outputting to five displays
Our college is attempting a multimedia show, where a single computer running QLab needs to output different videos to five different displays. I've been able to put two stock GeForce cards in our 2008 Mac Pro. But I haven't found any other video cards (without a separate power cable) that I can add to the Mac Pro. The closest I got was the XFX One, which the OS (10.6.8) seems to recognize but won't initialize. I tried a BlackMagic dual HDMI card, but even with the drivers installed the system doesn't seem to recognize it outside of BlackMagic's own software.
Any suggestions?