HP 574505-001 - System board (motheboard) - For use in computers with UMA graphics subsystem memory that do not include a WWAN module 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
