Help! My PSU doesnt shut down.

KyuJutsu

Honorable
Dec 15, 2013
9
0
10,510
Hello,
Yesterday i bought an OCZ fatal1ty 750w i plugged it in and it works perfectly as fas as i can see. However, when i shut down my pc the PSU keeps going until i press the black hard switch..

My mobo Gigabyte P55M-UD2
Anyone knows what's up? or guessing what can be wrong?
If i keep it as it is will i be fine or i will have other problems too?

Thanks!