My computer specs are to top it off
Motherboard : Asus Z170 Pro Gaming
CPU : I6700k (i7)
PSU : Corsair CX850M
Graphics : GTX 780? ( I forgot my bad )
So far when I try to boot it up regardless the monitor can't pick up its signal, so I've tried to remove the graphics card and try from motherboard, but regardless it didn't work at all. To top it off I even tried to plug it into the graphics card via monitor and used VGA, Hdmi, and another one, yet nothing worked so I need really bad help at the moment and anything will do.