Lenovo ThinkPad W520 Board Schematic, 10222-SA Kendo-3 Workstation
The Laptop Motherboard Schematic for Lenovo ThinkPad W520 laptop/notebook, Wistron Kendo-3 WS Mainboard.
CPU: Intel SandyBridge (QC)
Discrete VGA NVIDIA N12P-Q1/Q3
Chipset: Intel PCH Cougar Point