Heatpipes: The Investigation Begins
Written by Michael Larabel in Peripherals on 27 October 2007. Page 7 of 7. 21 Comments

Abit is so proud of their Silent OTES creation that it's a "patented heatpipe technology." With the US Patent & Trademark Office, Abit Computer Corporation had their patent approved back in June of 2004 for a "heat dissipating apparatus for circuit boards." In this patent they show diagrams of their OTES implementation for graphics cards. In this patent (US patent number: 6754077), it's stated: "The heat transfer tube is an advanced technique adopted on electronic devices. It is made from pure oxygen-free copper tubes and copper meshes filled with pure water or acetone as working fluid. The fluid at the heat receiving end is vaporized to a cooling end to be cooled and condensed to the fluid phase again."

We then turned to a second Abit motherboard with another Silent OTES heatpipe cooler. The video of it is available here. Clearly, not all heatpipes are made equal.

Last updated on October 29, 2007.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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