i built a new rig and i got windows 7 ultimate 64x on it and it randomly freezes somtimes and then i t unfreezes after 20 secounds and acts like nothing even happened my specs are msi 970a -g46 and my gpu is a asus gtx 550 my cpu is a amd fx 4130 my ram is corsair 1x4 vegence ddr3 i have a crucial m4 ssd and a 500 gb samsung hdd. what could be causing this freezing it is very annoying thanks for your time