New build, bad ram? Black screen. Help

Hypoxik1

Distinguished
Mar 11, 2011
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18,510
So I just received all my new gear and built my computer tonight, It was hell. I can't figure out what is wrong

I got the Asus p6x58d Premium Mobo
intel i7 960 cpu
650w Antec Psu
Prolimatech Megahalems Rev.B CPU Cooler
CORSAIR DOMINATOR 12GB (3 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMP12GX3M3A1600C9
HITACHI Deskstar H3IK30003272SW (0S03208) 3TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Nvidia Gefore GTS 250 1024mb video card
Windows 7 64 bit

So once I finished building it, I turned it on. Its turned on, all the fans worked. However I noticed i didn't hear a beep or anything from the mobo from the interal speaker that was installed...... Then as i waited patiently staring at my screen nothing every happened. It just stayed black, Then as i looked inside the case I saw a red L.E.D light. Its the Dimm Led light right next to the MEM OK button. I hold and pressed the Mem ok button to test the ram but it never did anything. Can someone please help on and tell me what i should try doing.