42W3784 IBM System Board (Motherboard) for ThinkPad T61 (Refurbished)
T700 crowdfunding: a new custom motherboard for good old T60/T61 Thinkpads - with 11th gen Intel and up to 64GB of DDR4 - has a great chance of coreboot opensource firmware support
NOKOTION For Lenovo IBM ThinkPad T61P T61 15.4" Laptop Motherboard 43Y9047 42W7791 42W7876 44C3928 42W7652 965PM NVS140M 128M - AliExpress
43Y6900 IBM System Board (Motherboard) for ThinkPad T61 R61 R61i (Refu
42W3415 - Lenovo (Motherboard) for ThinkPad T61
42W7648 IBM Lenovo System Board for ThinkPad T61 (14.1-inch) (Refurbished)
T61 mobo & LCD woes - Thinkpads Forum
IBM Lenovo T61p Motherboard « frgmnt org
Lenovo 43Y9252 Thinkpad Notebook R400 System Board Motherboa
44C4238 - IBM THINKPAD T61/T61P LAPTOP MOTHERBOARD | eBay
IBM T61 Motherboard Replacement Part 1 - YouTube
44C3924 42W7649 42W7873 Main Board For Lenovo Thinkpad T61 Laptop motherboard 14'' 965PM DDR2 cpu NVS140M graphics - Newegg.com