to better identify your processor and compatibility, you would need to let us know of something called the SL number. this is a marking that should be on the top of the processor heat spreader. 5 Characters. Starts with SL.
Based on your description it could only be 5 possibilities SL85U,SL7YU,SL8J8,SL9CK or SL8PL.
with this you can go here http://processormatch.intel.com/CompDB/ to find a compatible board.