Compatible?

Hello,
are these parts compatible with each other?

MOBO: GIGABYTE GA-970A-D3 AM3 AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard

PSU: Antec NEO ECO 520C 520W Continuous Power ATX12V v2.3 / EPS12V 80 PLUS Certified Active PFC Power Supply

Case: APEX PC-389-C Black Steel ATX Mid Tower Computer Case

HDD: Seagate Barracuda 7200.8 ST3400832AS 400GB 7200 RPM SATA 1.5Gb/s 3.5" Internal Hard Drive -Bare Drive

GPU:
SAPPHIRE Radeon HD 6670 1GB 128-bit DDR3 PCI Express 2.1 x16 HDCP Ready Video Card (11192-22-20G)

RAM: CORSAIR XMS3 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMX8GX3M2A1600C11

CPU: AMD Phenom II X4 965 Black Edition Deneb 3.4GHz Socket AM3 125W Quad-Core Processor HDZ965FBGMBOX

Thx