reseat all of the connections. pci-e and psu connections.
Also ensure that the input is correct on the monitor menu based upon if you are using vga or dvi.
Try a different monitor.
Is the board powering up?
ASUS P6T Deluxe V2 :: INTEL i7 920 @3.4 :: XFX GTX260 :: 6gb Corsair 1600 :: Corsair 750TX :: TRUE 120 :: Samsung T240 24" :: Windows 7 X64
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