HP 538457-001 - Heat sink - For use on computer models equipped with an Intel processor and a graphics subsystem with UMA memory - Includes replace Retail
HP 538459-001 - Heat sink - For use in models equipped with an AMD processor and a graphics subsystem with discrete memory - Includes replacement t Retail
HP 746659-001 - Heat sink - For use on models with a graphics subsystem using UMA memory - Includes replacement thermal material Retail
HP 577226-001 - Heat sink - For use only on computer models equipped with a graphics subsystem with UMA memory - Includes replacement thermal mater Retail
HP 593878-001 - Heat sink - Includes replacement thermal material - For use with 6540b and 6440b models equipped with UMA graphics subsystem memory Retail
