Gateway - Gateway Dx4300-03 System Board System Pull. Guaranteed for 90 days. Genuine part. GATEWAY GATEWAY DX4300-03 SYSTEM BOARD Parts can usually not be interchanged - please check to make sure that your original part has this part number or that the manufacturer recommends this replacement part for your system. for GATEWAY ACER DX430003 SYSTEM BOARD MB.G0409.005