I need some help with a problem I'm having. I'm currently building a new gaming computer and this is that second one that I have built. Tonight I finally received my memory and thermal gel so I have everything. Hooked everything up and the fans work, mobo lights up, temperature gauges work, dvd-rom works, can only assume HD works, I mean everything at least has power and turns on. However I'm getting a "No signal" display on the monitor. The motherboard that I have has dual PCI Express x16 slots and I have two video cards for it with SLI configuration. I have checked all the power connections and everything but still the same message. The message appears as if I turn the monitor on with it not plugged into anything. I have even tried to just run 1 video card in the first PCI slot and still the same message. I'm kind of at a loss right now and was wondering if anyone else is more familiar with SLI or the motherboards that support them. Also my mobo doesn't have an onboard video input so I can't test to see if that would work. Any help would be appreciated.