I have an Asus A88XM-A motherboard which currently has one stick of Ballistix Sport XT 8GB 1866MHz DDR3 RAM, I am looking to upgrade to 16Gb however the price of the 8Gb stick has more than doubled.. I am looking to know if a kit of 2 x 4Gb Ballistix Sport XT 1866MHz DDR3 would work as it is half the price.