No power to USB ports

Strongwolf2

Distinguished
Apr 15, 2014
307
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A recently make this rig with a.Gigabyte 970A-DS3P. When I try to boot up, nothing. Not even the BIOS or post. I also notice that it won't power up my USB keyboard so I send it back to Newegg for an exchange. The new one came I install it and has the same problem. I change the RAM, CPU and PSU and still nothing. What can I do?
Processor: AMD FX 4300
RAM: G. Skill Ripjaw 4GB x 2
HDD: WD 500GB
PSU: OCZ 700w