MacBook Pro 15″ Mid 2009 A1286 Model,
Has Two types of logic board Layout with One OR Two Cooling Fan,
The 2.53ghz Model has One CPU Fan And the 2.66Ghz, 2.8Ghz & 3.06Ghz Models Has Two Cooling Fan

2.56Ghz Model Has One Fan

2.66Ghz, 2.8Ghz& 3.06Ghz Has Two Fan.


