Overclocking On Air

[butitoy]

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an interesting article....

http://www.tomshardware.com/reviews/...k,2535-12.html





> the enemy of both stability and longevity, heat changes the characteristics of silicon in a way that eventually makes it unsuitable for use in a logic circuit.
Heat damage can sneak up on overclockers quickly, such as the 59 degree Celsius stability limit we encountered when overclocking AMD’s Phenom II.

Similarly, many of our Core 2 Duos responded unfavorably to temperatures over 65 degrees Celsius.

But hasn’t all that changed with the advent of Lynnfield, a core that can just withstand temperatures of up to 100 degrees Celsius? We have, after all, been flirting with 95 degrees Celsius regularly while testing the overclocking capabilities of motherboards, yet still reach stable clock speeds of over 4.3 GHz.

Although our Core i7-870 sample raised the temperature level at which we had to put on the brakes, its temperature limit coinciding with our cooling and voltage limits happened by mere coincidence. Surely a platform that operates so close to its thermal limit on an open test bench would be unsuitable for use in a closed case, since the higher ambient temperatures would cause thermal throttling (Intel’s automatic speed reduction) at anything close to full CPU load.
Liquid cooling could help, but recent tests have shown that anything less than a dual-fan radiator version often provides unsatisfactory results. Most users don't want to bother with a high-end liquid configuration, and most cases don’t support those enormous radiators. For the sake of builders, it’s time for us to track down the best possible air-cooling solution.




now.. which one do u own?



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[eirawn]

tuniq tower extreme ako gamit. mo add sad ug bling2x sa sulod.

[VonTech]

sir butitoy, dead ang link, naa "the" na sumpay after sa html.....

[butitoy]

edited the links...

murag naa blema ila linkage..

[butitoy]

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The combination of pros and cons leave us with several recommendations, depending on intended use. While Noctua’s customers have probably already committed themselves to purchasing the best-performing CPU air cooler, we’d recommend the cheaper Mugen-2 Rev. B as a better value for nearly any configuration that has the necessary mounting space. Thermalright’s MUX-120, on the other hand, is the best performing solution for builds that have limited mounting space, while Cooler Master’s far cheaper Hyper 212 Plus is worth considering by anyone who requires a similar footprint but can’t live with Thermalright’s higher price.
With our recommendations out of the way, it’s worth noting that while several coolers included manual fan speed controllers, only three supported pulse-width modulation (PWM) fan speed control. Of those, Scythe’s Mugen-2 Rev. B was the only one to make its way into our recommendations based on performance alone. We see many of our readers express frustration over their motherboards' “inability” to control fan speed automatically, but many of those boards rely on PWM control exclusively. While some motherboards also provide for fan-speed control via automatic voltage changes, PWM fans work with either type of speed control. Automatic speed control is a far more valuable feature to us than any included potentiometer, because we prefer our systems to be nearly silent under low load. Thus, while we’ve ignored the feature in our performance analysis, this editor has taken the initiative to replace the fan of his own MUX-120 test cooler with a PWM-based unit.