BSOD for no apparent Reason

Hello, I recently built a new AMD Desktop. I have checked and monitored CPU temps VGA temp and checked to ensure the ram timings and speed are correct. I think it may be the hard drive but have no way to confirm. I cannot read the screen to get a file ext or anything. Please assist. System Specs:
Phenom ii 955 stock. was ocd but dropped it back down to determine problem
Gigabyte 860g ud3h
4gb Adata g-series ddr3 1600
samsung f3 1tb
ATI hd HIS 4870 1gb
Antec Earthwatts 650w