Computer with Z790 was working fine for over a year but suddenly crashed and doesn't have any display.

Hi everyone, hope this is the right place to ask, but I have a computer with a Z790 that I've been using for over a year now and it just crashed on me and is no long showing any display.

I've tried reseating my ram 1 stick at a time but that hasn't worked, and I noticed that there is an orange LED on under CPU. Any suggestions on what I can do?