Right cut a long story short. My computer is on 24/7, never turn it off. been like this for a good few years. Went out yesterday, got back in...and my computer was off....and would not switch back on. I changed fuse in plug...no luck..So i guessed it was psu jobbie. Got a new psu fitted today...£25..mugged...came home.. plugged it in....worked for like 20 mins. Bam, computer goes off. im like GRRRRRRRRRRRR . change fuse...no luck...wont turn on. Taken case off, and there is a lil lighton the motherboard (near the light it ses "ram somehting or other " that comes on when u press the power..but thats all. The fan sort of goes to start very minimally then stops. So whats the issue. Psu blown? How can i tell. Motherboard issue?? Please help , im so f**ked off its unbelievable