A gaming control board having low-power circuitry and high-power circuitry for controlling the operation of a gaming machine. The low-power circuitry includes logic components including a CPU that executes instructions for randomly selecting a plurality of game outcomes in response to wagers inputted by a player. The high-power circuitry includes high-power components such as lamp drivers for interfacing high-power signals between the gaming control board and a game interface board. Two connectors are provided on the gaming control board, one to interface low-power signals and another to interface high-power signals. The high-power circuitry is located near the connector interfacing the high-power signals for optimal EMI suppression.