We are specializing in all laptop parts, such as motherboard  CPU, laptop LCD, Graphic cards, HDD, Inverter, keyboards, VGA ect. We have all brand in our stock, also we have very professional engineer team work on it, test before ship and very good service after sold. Welcome to contact us!PN: FOR HP -503395-001 MOTHERBOARDCondition: Refurbished, Tested and guarantee to work perfectlyWe offer free replacement or repair of defective motherboards within Within period of warranty of refund within 7daysAll the product sold from Weihengda had tested the qualified products, but our company can not guarantee the damage under the trasportation process, Weihengda accept the return of merchandise which conforms with the contract for return merchandise as below1) The adcance application :need the returned products part No. and quality list in advance2)The returned merchandies term: need Weihengda no. testing report, the returned merchandise list.3) The transportation cost: only for one single trip of the delievery back here. We also sell as below parts: DV62Intel independence chip 8pcs3Intel integration1AMD integrationDV75486541-001  AMD independenceDV2000/V300029431843-001  AMD integration 6150 Contact person: Chase Chen M.B.: +86 13928128361Tel:+86 755 83614778-803 Fax:+86 755 83687925