I have already bought my rig, sad to say, i didn't got the G Skill Sniper 1600mhz 2x4GB but the Corsair Vengeance 1600mhz 2x4GB. Now i''m facing a promblem, when i check the bios and even the Cpuz it only shows 1333mhz running in dual channel, i update my board BIOS MSI B75MA-P45 to v1.5 and expecting that it will change the frequencyh to 1600mhz, which also was stated on their site.. can you give me an idea on how to change its frequency? and is it safe to do so?