Frequent crashes in my custom built system (Help needed)

Dotss

Honorable
Dec 12, 2013
3
0
10,510
Problem with custom computer crashing frequently after building it. Just built it literary two days ago.

Specs
Gigabyte GA-970A-D3P mobo - Bios version F5
Fx-8320 Cpu - stock cooler not OC
Club 3d r9 280x Gpu
8 gigs of 1866 DDR3 Ram (Team Vulcan) (2x 4gb sticks)
1 tb Seagate HDD
120 gb kingstong SSD
Nexus Optical Drive
Rosewill Challenger Case
750 w Bronze Certified Rosewill Hive Psu

Windows 8 64 bit operating system
my temperature are all good. I havn't even had the chance to do any hard gamin but have run Prime95 stress test. Cpu temp never go above 50 degrees (stress test) GPU never went above 75 ~ max mainly around 65. 3 120 mm fans and 2 140 mm on case for great airflow. Ive updated drivers and Bios and chipset for Mobo and updated drivers for GPU. A little lost on why its crashing so frequently. Guessing it might be the power supply but i thought i was in the green with my purchase. Possibly could be software issues but i'm sort of lost. This is my first build and while i had a friend help me pick parts and put together we are both a little confused on the crashing.

The freeze is that the display freezes along with my mouse and keyboard and i a forced to either hold power button or turn off power supply to reboot my system. Computer will run for 10 minutes to a couple hours before it freezes.
Thanks in advance for the help
-Michael

 

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