CPU CoolerPC Hardware Reviews

Twelve CPU Air Cooler Roundup

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 Enermax ETS-T40-TB

The entry from Enermax is the ETS-T40-TB. This is a 120 mm single fan tower cooler that features four 6mm heatpipes.


Model ETS-T40-TB
Compatible Socket Intel® LGA 775/1150/1155/1156/1366/2011,
AMD® AM2/AM2+/AM3/AM3+/FM1/FM2
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


DSC_2178 DSC_0331

The packaging for the Enermas ETS-T40 contains multiple imaged of the product. There are a couple of different versions of the cooler and which version is included is detailed on the sides. Detailed specifications and features fill the sides of the packaging.



Enermax packaged everything needed to mount the cooler. More specifically and including the Asus ROG LGA2011 and 1366 sockets known as X-Socket.


DSC_0332Compared to some of the other coolers in this round up, the Enermax ETS-T40 is not as wide or as heavy. The CPU cooler features four copper heatpipes. This cooler comes in at 139x70x160mm and weighs 610g.



Visibility through the cooler is good, so in theory so should airflow. The fins of the Enermax ETS-T40 are pressed onto the heatpipes. Enermax claims a thermal resistance of .09°C/W


DSC_0342The unique shape of the fins and the shapes on the fins leads Enermax to specify which direction air should flow through the cooler.



The base of the Enermax ETS-T40 is a heat pipe direct touch cooler, This means the heatpipes directly contact the IHS of the CPU. Light machining marks are visible on the base.


DSC_0343The main differences between the model numbers are the fans included. The -TB designation is a non-LED fan.


DSC_0344The unique blade design allows the fan to spin at a lower RPM thus reducing noise generated by the airflow. This fan is rated at 800-1800 RPM and 37.57-86.70 CFM and a noise profile of 10-21 dBA.


DSC_0345First, the stand offs and backplate will need to be assembled. Included in the kit are four fiber washers. Place the washers on one end of the standoffs like so.


DSC_0348Then with the newly installed fiber washer facing the motherboard, insert them into the motherboard holes and screw them into the backplate behind the motherboard.


DSC_0349Next, center the retention brackets on the installed standoffs. Secure the retention brackets with the included thumbscrews. To install the CPU cooler, place the cross bar across the base of the CPU Cooler. There are two alignment pins in the cross bar that must match up with the alignment holes in the back of the CPU cooler. Place the cross bar and cpu cooler onto the motherboard. Secure the cross bar using the nuts onto the threaded posts on the retention brackets.


DSC_0350Memory clearance of the Enermax ETS-T40 was good and the cooler alone left quite a bit of space between the memory slots. However, attaching the included fan ever so slightly overhung the first memory slot. The fan can be moved vertically to provide enough clearance to install memory in the first slot.



The Enermax ETS-T40 is installed and ready for testing.


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Tom Brokaw

Tom is a network and computer hardware enthusiast. He has been reviewing hardware products around for various sites around the net since 1999. He has modded a few cases back in the day.

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