No power to new build

[aroach220]

Ok just finished new build. Turn the thing on and the power supply fan turns on for a few seconds and then the whole thing shuts off. No beeps. Any advice?

 

[aroach220]

Here is what is in it:

Case: Antec 900
CPU: Intel Core i7 2600k
Mobo: Asus Sabertooth p67
PSU: Corsair Tx750W
Graphics card: XFX Radeon HD6870
Memory: GSkill RipjawsX 10666 CL9D 4x2Gb

I think that's it.. This is my first time building..