In embodiments of a multi-dimension memory timing tuner, a memory device controller that can be interfaced with one or more memory devices is coupled to a memory device for data communication with the memory device via a memory bus. The sound board further includes a first lateral edge which forms a first angle with the front edge, and a second lateral edge which forms a second angle with the front edge. The delay period depends upon the increase amount of in the new maximum rate compared to the existing maximum rate so that the greater the increase, the shorter the delay period. A first printed circuit board is connected to one end of the central heat conductor and a second printed circuit board is fitted to a second, opposite end of the central heat conductor.