Logic board with upgraded onboard 2.66 GHz Core i7 (i7-620M) processor. You can't upgrade the processor without replacing the entire logic board, so upgrade while you can!
820-2849-A 661-5526 i7 Logic Boards 2.66 GHz - Mid 2010 A1297 17inch Macbook Pro NB-3786W This is a replacement 2.66GHz Core i7 logic board for the 17" MacBook Pro Unibody. EEE code: DCMQ,DCMT,DD1G,DD1H