Yes they used to come with 2nd and 3rd Gen, but later only with 3rd Gen.  QM77 Express Chipset which is part of the mobile Intel 7 Series Chipset family that supports the 2nd and 3rd generation of Intel Core i processors.   Anyways for you [NAME]  its a big no for upgrading processor, unless you wanna swap whole motherboard.     
Hi, I recently bought a used E6530 and it has a 2nd generation CPU i3-2520M. It is strange since it should have the 3rd gen. CPU. I have also seen that more E6350 laptops listed in ebay.de bring 2nd gen. CPU.  My question is if I can upgrade the CPU to a 3rd gen. i7 with 4 cores. thanks in advance
CPU of E6530