Just finished building a new pc. I press the power and to my surprise, lights turned on and fans starting turning! I was really excited, then I went to plug it into my monitor. No output. After reading through numerous threads, one helpfully said to plug in a keyboard and hit caps lock. If the lights don't light up on the keyboard, then you have an unsuccessful boot. I plugged in a keyboard and just this happened, keys became backlit but no caps lock light when I spammed caps lock. What should I be checking or doing to solve my problem?