Noob Having problems

[NoobSailbot]

Hey guys,

My Gaming pc is initially turning on and then switching off immediately before the screen even engages. The fans turn on for a second and then shut off with the rest of the pc straight away. :

My set up
Core i5-4670K, Asus Sabertooth Z77, Antec H20 920, EVGA GTX FTW 670, 16GB Patriot Viper DDR3 RAM @1866, 120GB Corsair Force 3 series SSD, Alaska Venom 850w Gold PSU in a Corsair vengeance C70 case.

Help ?

 

[NoobSailbot]

Hey thanks for the replies I've not begun to overclock yet as i'm still learning about that ! I've unplugged most of the ports on the motherboard but ill try the GPU and the DVD drives and get back to you all thanks !