HP 613316-001 - Audio and ExpressCard assembly - For use with models equipped with a 15.6-inch display Retail
HP 613315-001 - Audio and ExpressCard assembly - For use with models equipped with a 14.0-inch display Retail
HP 583077-001 - System board (motherboard) - For use in models with DDR3 memory - Includes replacement thermal material and ExpressCard assembly Retail