A few decades ago, a monochrome trend hit the custom automotive world. Car owners opted into the sporty, European look by having their bumpers, windshield wiper arms, trim pieces, and door handles—basically ever ything but the glass—painted to match their vehicles’ body color.

The ETS-T40 CPU coolers from ENERMAX (distributed by ECOMASTER; www.ecomastertek.com) put us in mind of the monochroming fad, thanks to a neat new coating on its copper and aluminum surfaces. But the coating isn’t just an aesthetic decision; it supplies a real improvement to performance, as well.

In a nutshell, the SEF design conducts the heat flux of a CPU, and carries it to the top of the cooler for a more efficient dispersal.” -Lee

Color Coated

“As internal black or white coating becomes the standard in mainstream PC chassis, many users are looking for the ideal color components to complement The ENERMAX ETS-T40’s colorful coating actually helps it shed heat. It also looks boss. their color coordinated system,” says ENERMAX Sales Manager John Lee.

“This raised an idea to turn our award- winning ET S-T40 cooler fr om a traditional silver finish into a black or white edition for those users who want complete tone unification for their rigs.” The coating in question is ENERMAX’s innovative TCC (Thermal Conductive Coating). “A normal coat of paint would have a negative effect on the performance of a CPU cooler because the heat dissipation speed is blocked,” says Lee.

“However, with ENERMAX ’s new technology, TCC, the issue is solved and maintains the perfect performance of the T40. TCC has special nano-molecular properties that help pass the heat from one side to the other, while increasing thermal conductivity. “Moreover, the coatings offer anti- oxidation, which extends the lifetime of the cooler and ensures that the cooling performance will not deteriorate, even in humid environments,” says Lee.

So why white or black? Why didn’t ENERMAX finish the ETS-T40 in something showier, like a bright red or deep blue?

“In the past, PC systems would be too colorful and become chaotic or tacky,” says Lee. “You’d like to treat your system as an artistic centerpiece, so the entire composition must be appealing and flow well seamlessly. “With the new ENERMAX ETS-T40 Black Twister and ETS-T40 White Cluster, users have the opportunity to balance the colors in their rigs and stand out from the ordinary.” A bold hue would also make it hard for you to find other PC components in complementary colors. A neutral tone,such as the ETS-T40’s white or black, can pretty much go with anything.

“The ETS-T40 black or white editions are for those that desire more style and flair for their CPU cooling solution,” says Lee.

Construction

The ETS-T40 incorporates several technologies ENERMAX developed to help it do its job of cooling your CPU.
“It is designed to fulfill the quintessential customers’ need by implementing the unique patented technologies—VGF (Vortex Generator Flow), SEF (Stack Effect), and HDT (Heat-pipe Direct Touch),” Lee says.

VGF (Vortex Generator Flow). VGF increases air convection between the cooler’s aluminum fins, helping it to “hug” the round heat pipes in their midst.

“Vortex generators are commonly applied in the aviation industry,” says Lee. “They make sure that the air stream is lead as close as possible along the airplane’s wings. “During the CPU cooler development, the ENERMAX engineers recognized the potential of this technology to optimize the air stream inside the heatsink,” says Lee. “Small spoilers on the fins, also known as Vortex Generators, conduct the air close along the heat pipes. Much cooler air can then be transferred to the back of the heat pipes.” SEF (Stack Effect). This feature is designed to help heat escape through small “chimneys” in the fin structure.

“As warm air rises up due to its lower density, it leaves behind a low pressure that in exchange pulls cool air (upward),” says Lee. “Two openings in the middle of the heatsink make use of this effect. The openings interrupt the air stream so that the warm air gains space to escape and the heat dissipation can thus be accelerated.

“In a nutshell, the SEF design conducts the heat flux of a CPU, and carries it to the top of the cooler for a more efficient dispersal.”

HDT (Heat-pipe Direct Touch). Like other efficient CPU coolers, the ETS- T40 brings its four 6mm copper heat pipes directly into contact with the heat spreader of the CPU. This design, which flattens the heat pipes flush with the bottom of the heatsink assembly, can more quickly carry thermal energy away from the processor than a cooler with additional metal between the pipes and the CPU heat spreader.

VEF (Vacuum Effect). The ETS-T40 also employs VEF, or a Vacuum Effect feature, to optimize airflow inside the cooler. VEF draws air from the side of the cooler as the fan forces other air straight through the fins.

“The best example to explain this effect is through the aerodynamics of a moving car,” says Lee. “The car pushes air aside as it goes down the road and leaves a lower pressure. Air from the sides will be sucked inwards to compensate for the difference in pressure.“With that effect in mind, the sides of the CPU cooler ar e not completely enclosed because it allows for cooler air to be vacuumed directly into the heatsink.”
Fan Facts

Part of the ETS-T40’s success comes from its long-life, user-adjustable fan. The cooler comes with a single blowe r, but you can easily add a second fan using an extra set of metal clips. Your PC will regulate the fan’s speed as necessary using PWM (pulse width modulation). That said, you can manually choose one of three maximum fan speeds using a small switch on the hub of the fan.

“The new innovation from ENERMAX, dubbed ‘Adjustable Peak Speed (APS)’ enables the adaptation of the fan to
its field of application.” With APS, Lee says, ENERMAX “can addressthree different target groups with just one product,” meaning silent, mainstream performance, and overclocking rigs.

APS gives you control over the upper noise limit of the ETS-T40, while still allowing your system to adjust its cooling performance based on load. Rubber mounts prevent the fan from causing additional noise through vibration. “End users can individually widen or limit the fan’s RPM range according to the system configuration and requirements,” says Lee. “At the default setting, ‘Performance Mode,’ the fan runs at a maximum 1,800rpm, also dependent on the model. Fo r installation in a silent PC system, the user can slow the speed down to a maximum of 1,500rpm, ‘Silent Mode,’ and make sure that the fan will work virtually silently. In ‘OverClock Mode’ the noise-generating factor does not play a major role. The APS fans will run up to 2,200rpm and reach the best possible cooling performance.”

The fan spins on ENERMAX ’s Twister Bearing for a long life spent in silence.

“Compar ed to normal bearings, such as sleev e and 2-ball bearings, Twister Bearing creates less friction in its structure, thus producing lower noise lev els and incr eases o v erall lifespan to 100,000 hours,” says Lee. “F ur thermor e, due to the special structural design, Twister Bearing allows the blades to be detached, so users can clean the blades easily to maintain optimal fan performance.”

Only Getting Better

At ENERMAX, “ We have been putting enormous R&D efforts into exploring various methods for cooling systems,” says Lee. “ETS-T40 reaches a thermal r esistance v alue as lo w as 0.09°C/W, while weighing only at 650g combined with an 1,800rpm fan, whereas other competitors need fans with higher speeds, or heavier aluminum/copper material, to reach similar performance.

“Bundled with sufficient mounting brackets, the ET S-T40 suppor ts most CPUs, including the latest 4th G eneration Cor e Pr ocessors fr om Intel,” says Lee. “At a less than $50 price point, it can still compete with other air coolers at the $60 and greater price range.

“With a reasonable price tag, the ETS-T40 is definitely a great choice of CPU cooler for enthusiasts and professionals”.

Source: CPU Magz issues 2013