04W3380 04y1816 Lenovo X220, i7-2640M HD Graphics 3000 - buy at the price of $93.00 in aliexpress.com | imall.com
Upgraded my i5 ThinkPad X220 with an i7 motherboard bought on eBay. Think I figured out why ethernet is the only thing that doesn't work : r/techsupportgore
Lenovo motherboard 04W3380 X220 Tablet with i7-2640M CPU Fan HD Graphics 3000 – Empower Laptop
Nokotion 04W0702 For Lenovo Thinkpad X220 Laptop Motherboard With i5 2430m CPU and Heatsink|Laptop Motherboard| - AliExpress