So yesterday I did everything I normally do, surf the internets, play some games for a while, music, etc. I turned it off no problem. Then today when I turned it on, it wouldn't POST. Like every fan would start spinning at 100% but nothing will appear on the screen. I saw the little 4 lights and it showed Top right Red Top left Green Low right Green Low left Red I think it's the Bios Sign up thing. So I cleared the cmos and still didn't boot. I unplugged everything, plugged it all (After checking and unplugging each device separately) again, and it boot. Is this a hardware issue? It's the first time it happens. Thanks.