Lenovo Thinkpad T61 Board Schematic Diagram(42W9347)
The Motherbord Schematic Diagram(pdf) for IBM Lenovo T61 Notebook & Laptop Board Schematic, D3_HISUI-5W LOGIC Board SchematicS(NV), 42W9347.
CPU: MEROM
South Bridge: ICH8-M
North Bridge: Intel Crestline