HP 577223-001 - PM45 system board - For use only on computer models equipped with graphics subsystems with discrete memory and equipped with WWAN c Retail
HP 577220-001 - GL40 system board - For use only on computer models equipped with graphics subsystems with UMA memory and not equipped with WWAN ca Retail
HP 577221-001 - GL40 system board - For use only on computer models equipped with graphics subsystems with UMA memory and equipped with WWAN capabi Retail
HP 577225-001 - GM45 system board - For use only on computer models equipped with graphics subsystems with UMA memory and equipped with WWAN capabi Retail
HP 577227-001 - Heat sink - For use only on computer models equipped with a graphics subsystem with discrete memory - Includes replacement thermal Retail
