CQ40-528TX Motherboard?

Loved All,
I poverty to know the Motherboard Division no for
Compaq Presario CQ40-528TX Notebook PC

Serial number CND9310YN7
Product number VH833PA#AB4

It has Intel processor next to dedicated nvidia graphics...

Can many one help me out with the motherboard element no all for this laptop.....

Thank you all all for your valuable feedback....