Home Forums Tech Helproom Pc wont turn on at all, but mobo light is green. Forum Rules | Contact Forum Editor | Report a Post Pc wont turn on at all, but mobo light is green. Dylangiantsfan 02:21 12 May 2017 Locked Just got home and I noticed my pc was off, I tried to turn it back on and nothing happened. I jumped the power supply and it's fine, the mobo light is green and jumping the power button does nothing. Fruit Bat /\0/\ 09:42 12 May 2017 No fans or HDD noises then even if mobo light is green it points to a bad PSSU. check all connections and if OK then try to borrow another PSU. This thread is now locked and can not be replied to.