computer won't power on

[lis2180]

My computer that is a year old won't power on. I checked the power cable, and tried different sockets and nothing at all. Please help, I just built this computer last year and everything was running perfect this morning. I turned it off and went to work, and now it won't turn on

 

[skitszo]

do you see any LED lights on? PSU lights/ motherboard lights?

make sure your getting power at the socket and power strips.

get a known good PSU and see if that works.

check the power button switch. cable for being loose.