Ok, this is one that has me alittle stumped, I recently built a computer, and it works, just fine, my freinds ordered pritty much the same parts as me, same mother board, nearly the same processor and video card.

After we put his together and turned it on, It powers up, fans and lights all come on. but no signal is going to the monitor, and we dont get any beeps.

I tried, putting in my processor, still did the same thing, I also tried my video card and ram. and it still dose the same thing.

We have even tried diffrent mother boards and they all do the same thing. any ideas.

Well, sounds like you eliminated quite a bit of the possibilities.. have you tried a different monitor?

the monitor works, Its one i use regularly for my xbox 360 and my computer when i want dual montiors. it works just fine. but i have also tried my other monitors on it.

I honestly don't know. I've PMed the tech team letting them know I started to respond here and will let one of them take it over.

Good luck,
Adam

This may sound silly... but have you swapped the cable ?
or checked it for a bent pin ?
Video adapter shows up in device manager?

Ive tried diffrent wires, vga and dvi, nothing shows up on the monitor at all, i dont know if the computer is even booting up, it all sounds like its working. just the monitor stays in hibernate