So you ask in the GB UP45 thread if they prefer the GB board over the Asus, that's like entering a mercedez dealer and ask if you shouldn't be better wit a BMW...
Most users here are very happy with their setups, this board absolutely flies with quads but in my own humble experience the Asus ones are easier to setup...
With the PCI-E Being too narrow you're talking about the bandwith of the 2nd slot for Xcrossfire action... have a look at both boards layouts and see what might work best with ya cards... I think the Gb will be a better option

