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© ifixit Teardowns | December 04, 2015

Microsoft accidentally builds Surface Book upside down

Once upon a time, Microsoft shared with the world their first ever notebook, the Surface Book.
 Of course, iFixit took it apart to see just what made it tick.

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Here's where the plot twist comes in: the motherboard sprawls across the entire chassis, and it’s upside-down. Meaning smooth-side up, connectors-and-chips-side down. We assume this was meant to provide support to the larger-than-usual display. It also means getting most anything out requires getting ​everything out. Now that’s a sad ending.

Surface Book teardown highlights:

The battery in the base hefts in at an impressive 51 Wh, providing nearly 3 times the juice as the tablet. Combined, the batteries in the base and tablet give us 69 Wh—just a mite shy of the 74.9 Wh you'd get in this year's 13" Retina MacBook Pro.

The Surface Book features a "Muscle Wire Lock" that keeps the tablet fastened to the base until you’re ready to undock it. Muscle wire is a bit like an animagus; it can deform and return to a prior shape when heated. In this case, electricity heats the wire causing it to contract, lifting the lower arm of the linkage. When the linkage is retracted, a tiny grippy rod rolls out of the way and lets the base go.

Our model includes a dedicated GPU in the base, which grants you that extra processing power when you need it. The GPU is a custom Nvidia GeForce chip labeled n16s-lg-s-a2; we've heard it’s comparable to a GeForce 940M.
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More can be found at © iFixit.
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