New build not booting up
I just recently finished putting together my new computer. When I first tried booting it up, it would turn on for about 3 seconds, then turn off for about 3 seconds, again and again until I shut it off.
Took everything out of the case, set the motherboard on a cardboard sheet and began turning it on adding one thing at a time. When I did this, everything would run, but I would not get anything on the screen. (no input to the screen, not just a black screen) I am out of ideas and thinking that it has something to do with either the motherboard or the graphics card. I would love to test it without a graphics card but the mobo doesnt have an onboard one. Everything is listed below. Any help would be greatly appreciated.
Motherboard: Gigabyte GA-EX58-UD4P
CPU: Intel Core i7 920
Memory: Coirsair DDR3 6GB Kit (3x2GB)
PSU: Antec 550W
Graphics Card: GeForce 9600GT
Hard Drive: Maxtor 200GB