I need help please

JustAriana

Distinguished
Sep 25, 2011
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I just built my first build, but it wont turn on. So i wanted to double check and make sure all my components are compatible.

NZXT Apollo Mid tower case
Gigabyte 990XA-UD3 motherboard
EVGA Superclocked GTX 580
AMD Phenom IIx4 965 B.E. processor
G.SKILL Sniper 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666)
Antec Neo Eco 620W PSU

Can some one please tell me if all of these components are compatible? I can't get this build to work if my life depended on it.