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AMD Phenom II Efficiency and Cooler Selection |
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Written by Chris Tom
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Tuesday, 14 April 2009 18:53 |
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ixbt looks at good coolers for the Phenon II. Apparently the Coolermaster Hyper Z600 did the best. You can pick it up here starting at $40. The Phenom II series, especially processors with the TDP of 95W, is really power efficient. On the one hand, there is no real need to replace the stock cooler in the typical mode, because it copes with its task at the lowest noise level. On the other hand, you have an opportunity for various experiments with low-noise and even passive cooling. Or you can overclock the system to impressive frequencies, and cooler selection still won't be a headache. However, we've already noted that installing more powerful air coolers (or liquid coolers) in the overclocked mode does not pursue the goal of lowering temperatures to recommended (acceptable) values, for it does not require any drastic measures. It's done to get temperatures below the recommended values. It often helps to expand the overclocking potential significantly -- overclock a Phenom II to 4GHz and higher, for example. But that's another story that has to do with overclocking sports (that has interesting peculiarities, by the way). For example, if you have a powerful cooling system, it makes more sense to buy a top processor from the 900 series with the TDP of 125W instead of a 95W CPU. The former won't be much hotter in practice, but it will better respond to raising voltage above 1.5V -- by improving its overclocking potential. |
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AMD TFE 2008: Heatpipes and Vapor Chambers |
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Written by Chris Tom
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Friday, 31 October 2008 10:14 |
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The Inquirer is at AMD's TFE 2008. Today they are talking heatpipes and vapor chamber technology they are seeing there. The water boils, moves down the tube, hits a cool spot, and then condenses. The heat is transferred by the vapor from the hot spot, usually a CPU or a GPU, to the cool spot, the fins or heatsink. Simple so far, but how does the water get back from the cool spot where it condenses to the hot spot where it is needed? If you are thinking gravity, you are only partially right, it can work via gravity, but that is a minor portion of the flow. Also, if you rely on gravity, make sure the geek installing your heatpipe doesn't angle the computer wrong or things get very ugly. |
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ASETEK FIRST WITH LIQUID COOLING FOR AMD’S “HOT” NEW ATI RADEON HD 4870 GRAPHICS PROCESSOR CARDS |
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Written by Chris Tom
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Wednesday, 25 June 2008 04:42 |
Asetek’s industry-leading, LCLC liquid cooling solution is now available for AMD’s latest ATI Radeon HD 4870 family of graphics cards. The unique, single-slot liquid cooling approach provides OEMs with an extremely high overclocking capability enabling them to design and produce outstanding gaming and entertainment products with virtually no noise.
OEM-quality, Liquid Cooling Extends Overclocking Performance for the Ultimate Silent PC Gaming Graphics Experience
SAN JOSE, Calf. June 25, 2008 - Asetek’s industry-leading, LCLC liquid cooling solution is now available for AMD’s latest ATI Radeon HD 4870 family of graphics cards. The unique, single-slot liquid cooling approach provides OEMs with an extremely high overclocking capability enabling them to design and produce outstanding gaming and entertainment products with virtually no noise.
PC gamers continue to push the performance envelope,” says Gary Baum, Asetek’s Senior VP of Marketing. “Our award-winning, LCLC thermal solution extends overclocking performance providing the maximum gaming and entertainment experience—with no graphics fan noise.
To meet the demands of advanced gaming or graphics-intensive applications, Asetek’s highly integrated solution lowers the GPU temperatures found on the 4870 by as much as 26 degrees, enabling it to run significantly cooler in extreme performance modes of operation. And, since the Asetek solution is totally liquid cooled, the graphics card can run completely silent, except for the system heat exchanger fan that typically runs at a quiet 30 dB(A).
For applications requiring exceptional thermal performance, low noise, small footprint, and maximum reliability, Asetek is the only liquid cooling company that provides these rigorous OEM level reliability and environmental testing assurance. Shock, vibration, and thermal stress testing assures a 50,000-hour operational lifetime with absolutely no end-user maintenance required.
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