Apple AirPort Extreme Model A1143 Teardown

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Apple AirPort Extreme Model A1143 Teardown: crwdns2935265:00crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

This is the top of the logic board. Interesting things: 3V (clock?) battery, two Samsung memory chips, and imprinted Apple part #820-1942-A. The processor is covered by a heat sink.
Here's a hi-res photo of the top of the logic board.

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