I include a custom built computer with the purpose of I just finished. I set up the motherboard, as well as video card, excluding my RAM, SATA hard drive, and the whole thing besides is mine. The motherboard and vid card did not appear to be broken, but upon rotating on with a monitor, the monitor went black and went keen on standby. I don’t consider I have BIOS or everything on the board because nothing is on the screen but every card as well as plug in works fine. What is going on?