pc no power

Hello everyone, I woke up to a completely dead pc the other day. It has no power completely (my ram's LED has no power, fan LEDs no power, motherboard LEDs no power, no power/lights anywhere). I left it in sleep mode the night before which I usually do and have been doing so for the past year...

So i have tried everything i probaly could but my pc is still dead. My pc is only 3 months old. I have reseted the cmos. Tested powesuply. Redo all the cables. Test cpu. Change ram. Removed videocard. But still theres no sign of any power in my pc. Anyone have some advice?