HP 766628-601 - System board (motherboard) - Includes an Intel Pentium 3561Y dual-core processor (1.2GHz, 2MB Level-3 cache, 11.5W TDP), Intel PCH

System board (motherboard) - Includes an Intel Pentium 3561Y dual-core processor (1.2GHz, 2MB Level-3 cache, 11.5W TDP), Intel PCH SoC chipset, Intel HD Graphics with UMA memory, and 4.0GB system memory - For use in models with Windows 8 Professional