Using an Intel Core i5 processor on a Core 2 Duo motherboard

Question

Is it possible to use an Intel Core i5 processor on a Core 2 Duo motherboard?

Is the Core 2 Duo processor chip shape the same as the Core i5's?

Answer 1

Core 2 Duo uses LGA 775. Core i5 (depending on generation) uses LGA 1156, LGA 1366, or LGA 1155. The sockets are not interchangable.

Answer 2

It is absolutely and unequivocally impossible.

The Core 2 Duo CPUs have no memory controller. They use an FSB to communicate with the Northbridge, which contains the memory controller. The Core i5 CPUs have a built-in memory controller and interface with the motherboard through a completely different interface (DMI).

So on a motherboard for a Core 2 Duo, the memory is wired to the Northbridge. On a motherboard for a Core i5, the memory is wired to the CPU. There no way.