I have problem with old computer. As you can imagine, it had much glitches and crashes over the years, but i come across this for the first time. Computer is used by person that turns off switch on PSU after they turn-off computer, for safety. Today, when they wanted to turn it back on, when hiting PSU switch to "1" computer starts up automaticaly, without pressing power button. But it is not turning on realy, fans are working but there is nothing on monitor. Restart/holding few sec power button to restart/turn off is not working. Im thinking its PSU, but i dont want to buy new one just to see that something else is wrong, so i need someone to tell me if this is happened to someone before. Ty.