I would enter the BIOS and manually set the memory timings and DDR3 voltage. Memory timings (or RAM timings) refer collectively to a set of four numerical parameters called CL, tRCD, tRP, and tRAS, commonly represented as a series of four numbers separated with dashes, in that respective order (e.g. 5-5-5-15). Refer to the downloadable GA-880GM-UD2H manual.