New computer won't boot

[LordSilent]

Specs:
GIGABYTE GA-965P-DS3 LGA 775 Intel P965 Express ATX Intel Motherboard
G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model F2-6400CL5D-2GBNQ
COOLER MASTER Centurion 5 CAC-T05-UW Black Aluminum Bezel, SECC ATX Mid Tower Computer Case
Intel Core 2 duo E6850
CORSAIR CMPSU-520HX ATX12V v2.2 and EPS12V 2.91 520W Power Supply

So I hooked this up last night (my first build) but when i go to plug it in and start it, nothing happens. sometimes the power led flickers for a half second but that was it. I dont think I have the case power and stuff hooked up correctly but I think i am following the manual. Can anyone help me out?


thanks in advance

 

[btcomm1]

Last time I had an issue like that the mobo was bad. Try putting it on top of a cardboard box with just cpu, mem and video card and see if it will start up.

 

[hurtstotalktoyou]

Try disconnecting everything that isn't necessary. You'll need the following connected:

24 or 20+4 pin ATX power supply connector
ATX 12v power supply connector
The CPU and heatsink/fan.
One stick of memory
A video card
the front LED & power connectors

Nothing else! You wouldn't believe some of the wacky problems you can cause by improper connections. Once, for example, I plugged in my USB headers backwards, and it kept my PSU from operating until I corrected them!

 

[LordSilent]

The wires where I connect the case to the motherboard were backwards. A quick turn around and the computer came up fine! Thanks for the help guys.