HP 787799-601 - System board (motherboard) - HM76 chipset, with UMA graphics memory, GLAN - For use in models with Windows 8 Professional Retail
HP 787799-501 - System board (motherboard) - HM76 chipset, with UMA graphics memory, GLAN - For use in models with Windows 8 Retail
HP 787799-001 - System board (motherboard) - HM76 chipset, with UMA graphics memory, GLAN - For use in models without Windows 8 Retail