HP 491799-001 - System board (motherboard) - Full-featured plus, ATI-M82 discrete with integrated HD3450 graphics memory Retail
HP 508351-001 - System board (Motherboard) - Full-feature plus discrete architecture - With M86/512MB graphics memory Retail
HP 518463-001 - System board (Motherboard) - Full-feature plus discrete architecture - With M86/512MB graphics memory Retail
HP 515868-002 - System board (motherboard) - Full-featured, GT130M chipset, 1GB (VRAM) graphics memory Retail
HP 580973-001 - System board (Motherboard) - With AMD G105M chipset, 512MB graphics memory, full featured+ (Discrete) Retail