Articles: Cooling
 

Bookmark and Share

(11) 
Pages: [ 1 | 2 | 3 | 4 | 5 | 6 ]

Design and Functionality

NZXT Havik 140 has a fully nickel-plated tower-heatsink:

 

 

On the outside it looks very similar to the heatsink of Thermalright Archon, but is a smaller. It measures 160x135x60 mm compared with 170.3x155x53 mm heatsink of the Archon. It also weighs 46 grams less – 760 g.

Unlike Archon with its 50 heatsink plates, Havik 140 has only 46 plates, which have the same thickness and gaps between the plates as the Thermalright cooler (0.45-0.50 mm and 2.0 mm respectively):

  

Since Havik 140 has fewer plates of smaller size, its calculated effective cooling surface is 7590 cm2, which is about 1400 cm2 smaller than the cooling surface of the Archon. The heatsink plates are soldered to the heatpipes, and there are double-clip locks on the sides of the heatsink, which make the entire structure even sturdier.

The cooler has six copper heatpipes 6 mm in diameter, which is exactly the same as by Archon. Moreover, the heatpipes pierce heatsink body in exactly the same pattern: two parallel rows:

 

However, unlike the Thermalright super-cooler, where the hottest heatpipes are at the maximum possible distance apart from one another, Havik 140 has different heatpipe configuration:

As we can see, two central heatpipes that bear maximum thermal load are not too far apart, which will hardly be a more optimal solution than the one from Thermalright. At the same time, these two heatpipes contact the largest part of the heatsink body, which is also cooled most intensely by the fans. It would definitely be very interesting to compare the efficiency of these two heatpipe layouts, but unfortunately, it is impossible to have a correct comparison (we would need two absolutely identical heatsinks with two different versions of heatpipes layout).

The cooler base plate has special grooves for the heatpipes located at 1 mm distance from one another. The thinnest part of the base plate beneath the heatpipes is 2-2.5 mm:

The contact surface of the nickel-plated copper base plate could have been finished better: you can see the machine marks, although you don’t really feel them to the touch.

Most importantly, the base contact surface is very even. Therefore, the thermal paste imprints left by the processor heat-spreader turned out more or less uniform, even though our test CPU has a little bump in the middle of it:

  

NZXT Havik 140 is equipped with two nine-blade fans with a 130 mm impeller:

Intricate wave-shaped blades should create very high air pressure compared with traditional blades. They rotate with a constant speed of 1200 RPM. The fans do not support PWM rotation speed adjustment. They should create combined airflow of 90.3 CFM and generate 27.8 dBA of noise. The fans are built using slide bearing with 30,000 hours MTBF.

The 40 mm rotor has a paper sticker indicating fans voltage, current and power consumption:

Our tests showed that the fans start at 3.6 V and consume a total of 4.3 W maximum. Each fan comes with a 150 mm cable. There is also a Y-splitter among the bundled accessories that will add another 170 mm of cable length. So, 320 mm should be sufficient to plug the fans into any mainboard connector.

The fans are fastened onto the heatsink in a very interesting manner: using silicone mounts inserted between the heatsink plates and catching on to special slits on the sides:

I have to admit that it is not very convenient to install the fans like that, although it is fairly easy. I also have to add that there will be a 5 mm gap between the heatsink and the fans.

In conclusion to our Havik 140 cooler design review I would like to offer you a few shots side by side with the Thermalright Archon:

 

You can clearly see that Archon is taller and wider, but Havik 140 heatsink is deeper.

 
Pages: [ 1 | 2 | 3 | 4 | 5 | 6 ]

Discussion

Comments currently: 11
Discussion started: 08/09/11 04:09:12 PM
Latest comment: 08/16/11 10:00:21 AM

View comments

Add your Comment