639266-001 HP Compaq CQ42-400 Intel Laptop Motherboard s478, 31AX3MB00C0, DA0AX3MB6C2 Rev:C
Authentic HP Compaq CQ42-400 Intel Laptop Motherboard s478.
Part Numbers: 639266-001, 31AX3MB00C0, DA0AX3MB6C2 Rev:C,
Compatible Models: HP CQ62 Series, HP G62 Series, HP G42 Series, HP CQ 42 Series.