I need some help with my pc guys so I want to upgrade my ram I currently have g.skill 2x2gb ram in it and I brought two g.skill 2x4gb rams for it to make a total of 12gb ram when I have the 2x2gb ram in it by themselves the computer runs fine but when I put the 2x4gb in as well the pc crashes and I get a blue screen with an error code saying memory management? Does anyone know what I might be doing wrong?