BSOD at Random Times Frequently

Hi, My computer is fairly new, within 8 months old. Here are the specs AMD FX 4100 Quad Core 3.62 ghz GIGABYTE GA-970A-UD3 AM3+ AMD G.SKILL Ripjaws Series 16GB (4 x 4GB) 240-Pin DDR3 EVGA 01G-P3-1556-KR GeForce GTX 550 Ti Western Digital Caviar Blue WD3200AAKX 320GB 7200 RPM Randomly my PC will just BSOD and reboot. I've scanned my PC with AVG and Avast, nothing report. I have rolled...