So yesterday I was on my computer and it kept randomly shutting down and my tv went to like a green screen so I turned computer off and on and it started back up but then it kept shutting down doing the same thing, I manged to get it work again last night and then today it's been working fine all day since 11am when I turned the computer on and I just went in to a league of legends game and my pc shut down again and my tv turned green again, and now I can't get it to work. The pc itself still boots up like it did yesterday but like yesterday it keeps saying no signal on the tv, I've checked all wires and they are in and the hdmi cable is fine and the power is still fine as the whole pc starts just gives me no signal and even when I somehow fixed it last night it's doing all the same stuff as it did yesterday by randomly freezing with a green screen, and on my motherboard I have a little number thing it was saying A0 earlier but now it's saying A6