Hang at initializing USB Controllers

[wintord]

I just put togather a new build

ASUS M4N98TD Motherboard
Phenom II 1090t
SLI GTX 480
8GB 1600mhz Corsair ram

When I try booting this up it wont go any further than Initializing USB Controllers on boot up. I have nothing other than a ps2 keyboard connected to it.

I have tried one stick of ram in every slot, running older 8800gt graphics card no disk drives connected, Resetting the bios ( battery out no power and jumper moved over to clear )

But I cant get it to go past the Initializing USB Controllers it just freezes no keboard control cant even access the bios to alter setting it freezes before thats a option.

Does anyone else have any sugestions other than the board is faulty.
Thanks for your help.

 

[wintord]

have tried all 4 modules i got it finds them all but stops at that error dont think its at the point where it is actually acessing the ram yet when it locks