The top of the logic board. (Click on the image for a larger version.)

Part numbers found thus far:

• Penryn Intel Core 2 Duo Mobile Processor P8600 5827B394 SLB4N AV80577P8600 2.40/3M/1066

• Cypress USB Controller CY7C638 33LFXC 0825 KOR 633013

• K0328 8F1 50C8 & K0305 8F5 5022

• F2117LP 20H V AF03370 0824JPN

• REALTEK RTL8251CA 86085S2 G831 TAIWAN

Compare this to the previous MacBook logic board.

The bottom of the logic board.

Part numbers found thus far:

• Cypress PSoC Mixed-Signal Array CY8C24794-24L FXI 0831 A 04 KOR CYP 637569

• Realtek HD Audio Codec ALC885 87J24A1 G83283

• TDK 6T213HF 0838 d

• ISL95O4 BHRZ H0832BB49

• APP001 928 3T 0829A

• SN 802043 TI 87K JR7C G4

Removing the right speaker and subwoofer.

The new MacBook received a welcome speaker upgrade. In the second image, the old plastic MacBook's speakers are on the left, and the new MacBook's speakers are on the right.

The elegant new glass and Aluminum display assembly.

Amazingly, the new display assembly weighs slightly less than the previous MacBook's plastic display assembly.

All major components - only 4.5 pounds, not bad for a full-featured, metal laptop.