Modern boards will set ram speed, timings, and voltage from the spd data on the ram chip in the first slot. As an example, you install a ram chip with 1600 speed and timings of 16-16-18-32 in the first slot and install some generic ram with setting of 1333 speed and timings of 18-18-20-40 in slot #2. Now you have problems because the generic ram is being overclocked and probably will not work at that speed/timings.
Post the exact ram you installed and the exact ram you already had in the system. Do not post 8gig corsair; post the exact brand and model#
Post the exact ram you installed and the exact ram you already had in the system. Do not post 8gig corsair; post the exact brand and model#