I have the same ram that my cousin had in there. He is a wiz at computers and told showed me how to time and configure the bios to enable the 2x4gb configuration. He has never had problems with it in the past. The only thing I can think of is I had my ram in the blue slots(1600mhz> or less) and not in the black slot (1600< or more.) I will try this out to troubleshoot more, I have also read that the configuration will work and that other people have done it BUT only if your bios setting are modified. I know that the bios wont read my ram well at presets for voltages and timings. But it worked fine but ill try swapping the ram slots and see how it goes.