Gateway NV7801u Motherboard MB.B5702.001 / MBB5702001 /LA-5021P System Pull. Guaranteed for 90 days. Genuine part. GATEWAY GATEWAY NV7801U LAPTOP 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. Details about GATEWAY NV7802U LAPTOP MOTHERBOARD MB.B5702.001