I have a P8P67 Deluxe and bought 2x 2g kingston (KVR1333N9/2G) can i add 2x 4g kingston (KVR1333N9/4G)? Obviously this would total 4 sticks all together and 12g ram. Would it function properly given i put the sticks in the correct dual channel slots? Is it even supported? If you need more info please ask, new to forum usage.