688278-501 HP 2000-2B E1-1200 Laptop Motherboard w/ AMD 1.4GHz System Pull. Guaranteed for 90 days. Genuine part. HP HP 2000-2B E1-1200 Laptop Motherboard w/ AMD 1.4GHz 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.