Yesterday i tried to turn on my pc but the only that happened is the cpu led light flashed for a second and my pc didnt turn on, i tried several more times this time the led didnt even flash so i unplugged the power then replugged it and my pc booted properly the same thing happened an hour ago although it took way more than several times to boot, i had a problem weeks before where my psu fan stopped spinning but after cleaning it worked so i presumed it wasn't any hardware issue, i had my psu for about 6 years now is it time buy a new one?