Optiplex 3020 Spec Sheet  The 3020 supports 4th gen, but isn't backwards compatible to 3rd gen that I know of.
Greetings I found some an old office optiplexes 3020 for sale. I think they are using the socket lga1155. Does anyone know if they support the i7 3770? thanks
Optiplex 3020 sff cpu upgrade