Sony's VAIO UX UMPC is definitely one of the sexier handheld PCs out there, but it's never been accused of being a rocket -- even the latest models only offer a lonely single-core 1.2GHz Core 2 Solo for your $2500, and since the chip is soldered onto the board, swapping it out for a Core 2 Duo isn't exactly easy, requiring an infrared soldering station and plenty of experience swapping chips. Nevertheless, it can be done, and Anh Nguyen from the Micro PC Talk forums pulled it off, upgrading his unit to a 1.2GHz U7600 Core 2 Duo with no ill effects or excess heat -- just some better benchmarks and hardcore modder bragging rights. Check out benchmarks after the break, and hit the read link for more.

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