FRU 04W3286 04W0676 04W0677 Main Board For Lenovo ThinkPad X220 Laptop Motherboard i5-2520M cpu 2.5GHz QM67 DDR3 nokotion 04w0696 04y1842 laptop motherboard for lenovo thinkpad x220 x220i with sr04s i3 2310m cpu qm67 mainboard