help with power issue on new build

[CowboyMega]

I just built a new pc. Asus MBA78L-Mobo, AMD FX8320E, Asus Strix Radeon R7 370 4gb, Sentry 725w psu. everything was working great until i woke up and it won't turn on. mobo led was off. only a week since it'sbeen built

 

[BadActor]

Try a different PSU, those Sentey are junk.