HP 530737-001 - System board (motherboard) - Discrete architecture, 512MB graphics memory PM45 chipset Retail
HP 534645-001 - System board (motherboard) - Discrete architecture, Intel PM45 chipset and HDMi support - Does not include processor Retail
HP 576944-001 - System board (motherboard) - UMA architecture, GM45 chipset, 512MB graphics memory, ver 1.4 - Does not include processor Retail
HP 590983-001 - System board (motherboard) - Discrete architecture, PM45 chipset, 512MB graphics memory, and integrated modem - Does not include pr Retail
HP 497023-001 - System board (motherboard) - Full-featured+, 512MB (VRAM) graphics memory, and Intel PM45 chipset Retail