Hi guys! i know im never on here lately sorry for that... im kinda worried i just trying to build my new pc and it wont boot up... i connected all the right leads from the case to the motherboard but it wont power on at all... all i get is a green flashing light on the board.. just wondered what that meant as i cant see to find it out anywhere

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Board : p5n-t deluxe
cpu : quad core intel 2.40ghz
ram: crucial ballistix 2gb 1066mhz
graphics card 8800gts
I checked all the leads for the power to the motherboard and connections to the hard drives so i aint a clue whats wrong im scared somethings broken now

. If someone can reply as soon as you can it be great !