HELP Home Built computer won't start

Crazy_Yak

Honorable
Jan 6, 2014
10
0
10,510
So I built my computer around 6 months ago and it has worked fine up to this point. So I get home from school and for some reason, my computer doesn't work. I switch it on, but the screen flashes up with the mother board bios info, as usual, but then the screen just goes completely blank. I have restarted it and tried again loads of times, and for some reason i cant access the bios info e.g. by pressing F12 and del. Does anyone know a solution? Sorry this might be in the wrong place, if someone could tell me where it should be, that would be great. Thanks