Wow, I'm shocked! I really thought I was sold a Core 2 Duo. However, I did read that the E5200 has a 12.5 multiplier--not that I understand that--and can be overclocked, if the motherboard is good. Can you tell me if the Gigabyte S-series G41M-ES2L is a good one for overclocking? The box says it supports Core 2 Duo and Core 2 Quad.