Changes to revision 33719:

Edit by Andrew Bookholt:

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[* black] The logic board and heat sink assembly by itself.
[* black] The speaker, microphone, and port layout are unchanged from previous MBP 15" Unibody machines.
[* black] Interestingly enough, the Intel platform controller hub is not connected to the heat sink. Apparently, enough heat is convected from the surface of the silicon to remove the small amount of heat generated by the graphics switching operations.