I am using a Asus P5Q motherboard with Corsair 1gb RAM 800mhz x 2. But now to play Battlefield game or Call of Duty: Ghosts game I need to upgrade RAM to 4gb. So I am looking to purchase Kingston DDR2 2 GB PC RAM (KVR800D2N6/2G) ram. But will this RAM be compatible with my mobo. Or mixing the different brands will give me BSOD trouble or some other error?