Enermax ETS-T40: Direct-Touch Heatpipe Cooler

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Enermax ETS-T40: Direct-Touch Heatpipe Cooler

July 23, 2012 by Lawrence Lee

Enermax ETS-T40-TB
CPU Cooler
Street Price

Enermax is a veritable legend in the PC power supply market but like many other manufacturers, they've expanded their range to cases and cooling products. Diversification is the general strategy for survival in the face of changing tech market patterns. Our first Enermax CPU heatsink sample is yet another ubiquitous tower, a budget model equipped with direct-touch heatpipes and their distinct "Twister" 120 mm fan.

The ETS-T40 box and contents.

Unlike some companies, Enermax isn't particularly fussy with their packaging. The ETS-T40 ships in a simple white box with blue accents, just large enough for the heatsink and accessories. The ETS-T40 is a simple four heatpipe 160 mm tall cooler in the same vein as the Cooler Master Hyper 212 Plus, the current undisputed low-cost heatsink; it's not a bad design to emulate. We've seen direct-touch heatpipe models come and go but most of them have been cursed with a poor mounting system resulting in less than adequate pressure between the base and CPU heatspreader.


One look at the ETS-T40's mounting gear and we're optimistic. A simple metal frame is assembled around the socket and a thick bar goes over the base exerting a downward force, a system similar to that employed by Noctua, Prolimatech, and Thermalright on their high performance coolers. A second set of fan clips is also included for those who prefer to utilize a dual fan configuration.

Enermax ETS-T40: Key Features
(from the product web page)
Feature & Brief
Our Comment
World leading thermal resistance performance of 0.09°C/W.

- Patented VGF (Vortex generator flow) technology to greatly increase air convection.
- Patented SEF (Stack Effect) design to enhance heat transfer.
- Unique air path creating high VEF (Vacuum Effect) to optimize the airflow.
- Patented HDT (Heat Pipe Direct Touch) Technology to ensure rapid thermal conduction and eliminate CPU hotspot.
Every manufacturer claims their design is optimized for maximum performance.
Side flow type with four Ø6mm high performance heat pipes.
A standard design.
Unique T.B.Silence PWM fan to adjust the power efficiently and keep the silence.
Unique yet alike to every other PWM fan.

Dual fan installed option and solid springs attached.

Typically only useful on thick heatsinks but having the option is a bonus.
Anti-vibration rubbers prevent fan vibration and absorb noise. Dampens vibrations and also creates some separation between the heatsink and fan.
Universal bracket for Intel® 775/1155/1156/1366/2011 and AMD® AM2/AM2+/AM3/AM3+/FM1.
High thermal conductivity grease to ensure the best thermal conduction between CPU and the heat sink. We'll take their word for it.

Enermax ETS-T40: Specifications
(from the product web page)
Model ETS-T40-TB
Compatible Socket Intel® LGA 775/1155/1156/1366/2011, AMD® AM2/AM2+/AM3/AM3+/FM
Overall Dimension 139(L) x 93(W) x 160(H)mm
Heat Sink Dimension 139(L) x 70(W) x 160(H)mm
Weight 610g
Heat Pipe 4 x Ø6mm
Material Copper heat pipes, aluminum fins
Thermal Resistance 0.09°C/W
Thermal Grease Dow Corning® TC-5121
Fan Dimension 120 x 120 x 25 mm
Fan Speed 800 ~ 1800 RPM
Air Flow 37.57 ~ 86.70CFM
63.83 ~ 147.30m3/h
Static Pressure 0.72 ~ 2.41mmH2O
Rated Voltage 12V
Bearing Type Twister Bearing
MTBF 100,000 hours
Noise 10 ~ 21dBA
Connector 4 pin PWM connector

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