Logic board with upgraded onboard 2.53 GHz C2D (P8700) processor. You can't upgrade the processor without replacing the entire logic board, so choose wisely!
MacBook Pro / MacBookPro5,5 / 2.26 GHz - Core 2 Duo - ( Mid-2009, Unibody, 13-Inch )
MacBook Pro / MacBookPro5,5 / 2.53 GHz - Core 2 Duo - ( Mid-2009, Unibody, 13-Inch )
Product details
820-2530-A 661-5231 Board 2.53 GHz , Logic, Core2Duo - Mid 2009 A1278 13inch Macbook Pro NB-4110W This is a replacement 2.53GHZ logic board for the Macbook Pro 13" Unibody models. EEE code: 6GD