Yeah, LGA-775 processors have that stepping around the metal plate that protects the core. It's there because of the plate that comes on on top to hold down the processor, since it doesn't use the traditional ZIF socket.
I cant use cpuz because I only have the processor and motherboard. Its socket 478. thank you lhuser those pictures helped. its a 2.8 ghz so what core would it likely to be? how much do you think it would fetch on ebay?