Patent ID: 8780536

Claim:
A motherboard, comprising: a printed circuit board comprising: a top surface; a bottom surface opposite to the top surface; a plurality of first soldering pads and first leads arranged on the top surface; and a plurality of second leads arranged between the top surface and the bottom surface; the printed circuit board defining a plurality of first vias, a plurality of second vias, and a plurality power vias perpendicular to the top surface; a central processing unit mounted on the top surface above the first vias and connected to the first vias; a voltage regulator mounted on the top surface above the power vias and connected to the power vias; a first memory adaptor neighboring the voltage regulator and surface-mount soldered to the first soldering pad, the first soldering pads being connected to the first vias by the first leads; and a second memory adaptor separated from the voltage regulator by the first memory adaptor, the second memory adaptor being mounted on the top surface and soldered to the second vias, the second vias being connected to the first vias by the second leads.