Lenovo ThinkPad R61 Motherboard tested with bottom Case. | eBay
43y9047 42w7791 42w7876 44c3928 42w7652 Main Board For Lenovo Ibm Thinkpad T61 15.4" Laptop Motherboard Type 6458 965pm Free Cpu - Laptop Motherboard - AliExpress
42W7777 IBM Lenovo System Board (Motherboard) for ThinkPad R61 (Refurbished)