His Windows 8.1 and Motherboard are linked from what i heard so that means i cant get a new motherboard for him without buying a new OS copy and i do not have the money for a new motherboard, CPU, and OS. So what socket is the G2020 and what will be a good CPU to replace it? I want to buy it off of ebay due to it being just the CPU. I want an i5 and nothing less. What are the list of i5 CPU that will fit in his motherboard since a G2020 fits and runs in it that should be enough info to figure it out but i cant.