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 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 491250-001 - System board - For use with computer models equipped with Intel processors with UMA graphics subsystem and a GL40 system board - In Retail
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 577222-001 - PM45 system board - For use only on computer models equipped with graphics subsystems with discrete memory and not equipped with WW Retail
