the estimated wattage on pcpartpicker was 384 so I got a 500 watt power supply. it seems the pc will turn on without the gpu but not with it. Maybe install the OS then install the drivers? maybe the motherboard needs to update? I didn't know this could be a problem.
AMD FX-8320 3.5GHz 8-Core Processor
Asus M5A78L-M/USB3 Micro ATX AM3+ Motherboard
G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive
EVGA GeForce GTX 760 2GB Video Card
Antec GX700 ATX Mid Tower Case
corsair CX500m psu
Samsung SH-224DB/BEBE DVD/CD Writer
AMD FX-8320 3.5GHz 8-Core Processor
Asus M5A78L-M/USB3 Micro ATX AM3+ Motherboard
G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive
EVGA GeForce GTX 760 2GB Video Card
Antec GX700 ATX Mid Tower Case
corsair CX500m psu
Samsung SH-224DB/BEBE DVD/CD Writer