Those sticks will run at 1600MHz if the Voltage is set to 1.5V.
If they are left to auto, the voltages drop to 1.45V and that send the stability@1600MHz for a toss.
What you need to do is get into the BIOS , go to/find the RAM timing/settings section and change the Voltage to 1.5V.
The newegg links you posted seem dead, all I could find there regarding the ram is either one of these two.http://www.newegg.com/Product/Product.aspx?Item=N82E16820233143http://www.newegg.com/Product/Product.aspx?Item=N82E16820145347
The second one is not listed in the QVL but the first one is.
Under the Heading AI Tweaker there is a Heading called DRAM Voltage. You will be able to change it from Auto to 1.5V if you choose the DOCP option in the AI Overclock Tuner, which is set to Auto by default.