Weirdest problem so far help me out!

blackscell

Honorable
Oct 11, 2012
47
0
10,530
So I have this new computer;

Gigabyte Z87X OC Edition
2x4 GB Corsair Vengeance CMZ8GX3M2A1600C9‏
2TB HD
I5 4430 Boxed
GTX 770 OC edition

So when I turn it on, all the fans spin etc but nothing happens. I have to press the turn on button multiple times then the motherboard shows some numbers 15/71 etc random numbers then screen pops up and it boots to windows.

When Windows is started up, and I shut it down it shuts down but all the fans keep spinning and lights are on I can only shut it down by powering off the PSU.

I removed ram sticks, disconnected a few fans, resetted CMOS multiple times, drained mobo etc nothing seems to help.

Anyone has a clue?