I have only been using one stick of ram for the last 3 months because it has never worked with both. After reading online that a cmos reset and reseating the motherboard could fix it, I tested my luck with the second stick from the same package (G.Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133). Now the pc won't post at all with 1 stick or 2 stick. The pc goes in an infinite loop of powering on and off (the power goes on, the fan spins for 10-7 seconds and then powers down). I'm not sure what could caused the problem. This happen before and after reading online, a few minutes of waiting with the motherboard battery out did the trick. Now it won't post after waiting 8 hours plus and shorting the cmos pin didn't work. I have tried bread boarding with just a cpu, cpu cooler, 1 stick of ram, and a monitor with no success. I have tried a different power supply and achieve the same results. My friend tested the ram in his build and they were fine. I can't test the motherboard nor cpu. My motherboard is rev 2.0. help please.