SR-71 Blackbird said:
i5 4670k with MSI Z87-G41 and a 120gb Samsung evo
I do not have any card in it.
Its more of a buzzing sound, but I did the paper clip trick on it and it turned on so would it be the PSU?
If a capacitors on it's way out it'll still turn on, for awhile anyway, if it's buzzing (think of like the sound lights can make) you have nothing to worry about.