HP Pavilion DV4 Compaq CQ45 schematic diagram(Discrete)
The motherboard schematic diagram(pdf) for HP Pavilion DV4(Discrete) laptop/notebook, Compal LA4102P, Discrete: Nvidia NB9M-GE.
CUP: Mobile Penryn
North Bridge: Intel Cantiga MCH
South Bridge: Intel ICH9-M