The manufacturer says that compared to the previous model Freezer i30 in the design of the cooler is Arctic Freezer i32 introduced a number of improvements that contributed to the increase of cooling ability and noise reduction.
CPU cooler Arctic Freezer i32 Comes in a colorfully decorated cardboard box.
On the external surfaces of the box depicts not only the product but given its description and specifications.On design features help to draw attention to the illustrations. Inscriptions mainly in English, but the main features are listed in several languages, including Russian. Box is made from gofrokartona medium thickness. Inside in the compartments formed by the partitions also from gofrokartona are the radiator, fan, mounting kit and documentation.
Complete installation instructions in English, but on the company’s website or watch the Russian version of the manual or download it from the website as a PDF file. A description of the stages is clear. On the company website there is a description of the cooler, product photos and support section.
The cooler zas a remote heat sink to which heat is transmitted from the base by four heat pipes. The tube, of course, copper. At the base of the cooler tube is tapered and embedded in a thick aluminum plate anodized on the outside. Adjacent to the CPU to the plane of the tubes doshlifovke but not polished. On the base of the cooler between the tubes is pronounced grooves. Prior to the installation of the sole is protected by a plastic film.
Prednaznachennogo thermal interface no, but the manufacturer has made to cooler a small bag with thermal paste MX-4. Thermal grease is recommended to put rollers on the center heat pipe on the sole. To do this using the supplied bag is very difficult, and it lacks in the best case at once. Having spent the entire bag, we got curves cushions of variable thickness. For reliability, we added more thermal paste MX-4, but from the syringe (which is much easier), which we found in our inventory. Here’s what happened:
Looking ahead, we will demonstrate the distribution of thermal paste after completion of all tests. On the processor.
And on the base of the cooler.
It is seen that the thermal paste was distributed in a very thin layer at the contact of heat pipes with a Central portion of the lid, and the surplus is squeezed out at the edges. Obviously, in this case, with thermal paste hard to overdo it, because its excesses are squeezed into the grooves between thermotrace and the soles. Note that fresh and after the tests of this thermal paste is relatively thin, sticky and a bit stringy, she squeezed much easier than coming out.
The radiator is a stack of aluminum fins tightly fitted on the heat pipes.
The heat pipes are located vrazbezhku that, according to the manufacturer, should improve the efficiency of the cooler.
Width dimensions of the fan a little less than a working plane of the radiator, and the radiator is quite a bit smaller than the diameter of the fan, so only a negligible portion of the airflow passes by the plates.
The supplied fan size 120 mm frame Height 25 mm.
On the holes in the fan side of the radiator is invited to paste a complete vibration dampers in the form of washers made of rubber (or similar resilient plastic) thickness of about 1 mm (in the photos they are still not glued). Themselves the washers need to be removed from the notched plate, one side of which is adhesive.Washers are only four, i.e. only one complete fan. Thanks to the washers-gaskets fixed the fan for its radiator frame, but the gap remains quite small.To disassemble the fan without losing its functionality, most likely we would not work, so mi believe that it has the special design of the bearing with liquid lubricant (Fluid Dynamic Bearing). Scheme:
Fan mounted to the radiator brackets from thin wires of stainless steel (set of brackets for two fans), while in principle possible to install the fan on either side of the radiator blowing on or blowing (or two fans on the radiator). In the instructions it is recommended to put a fan blowing on and consider how the Cabinet installed fan to the cooler fan was pushing the air in one direction.
Metal mounting hardware to the processor are made of hardened steel and are resistant plating. The directional pad on the back side of the motherboard is made of durable plastic, its ends have steel threaded bushings. This model is designed for use with Intel’s, but apparently have exactly the same design cooler but for AMD processors model A32 Freezer.
The cooler fan has a four-pin connector (power, speed sensor and PWM control) at the end of the cable, which is a short cable with a socket with three contacts (no output speed sensor) under the second fan. The wires of the fan are enclosed in a braided sheath. According to the legend, the shell reduces air resistance, but taking into account the thickness of the flat four-wire cable inside of the shell and its outer diameter, we of the truthfulness of this legend is much doubt.However, the shell will allow you to maintain a unified style of interior decoration design of the housing.
Below in the summary table will present the results of measurements of several parameters.
A full description of the methodology are given in the corresponding article “the Methodology of testing coolers”and in this section, we will only clarify some points. Used deposited on the surface of heat sink thermal grease from the package plus a small amount of the same thermal paste. To best equalize the temperature in addition to conditioning fans, if possible keep the temperature at 24 °C, used household fan running on the lowest speed and aimed from a distance of approximately 1.3 m to the stand.To account for the inevitable fluctuations in the temperature of the surrounding air stand, we for each measurement of the CPU temperature, we subtracted the actual temperature of the air, and to make it easier to compare with previous test results of the coolers, added the value of the base temperature of 24 °C. the fan speed was regulated by changing the supply voltage (12 and below) or by using PWM at a constant voltage (12 V). In the configuration of the test stand was modified as follows: used Intel Core i7-6900K mounted on motherboard ASRock X99 Taichi.
It is worth noting that the noise level measured by us, may differ significantly from that indicated in the specifications of the manufacturer. Also we do not assert that values less than 20 dB is reliable, but obtained values from the background level (in this case of the order of 16.8 dBA) 20 dBA, at least, correlated with actual changes in the level of noise.
The dependence is very specific. Less than 30%, the fan stops for more than 30% of the first steep rise of the rotation speed, rolling in a smooth increase up to 60%, then a significant addition occurs only at 100%. This is very different from recommended Intel linear dependence with a minimum at least 30% to 100% of the maximum. Also there is no match with what the manufacturer said stop the fan below 40% duty cycle PWM.From our point of view, the dependence of the fan speed of the cooler from the fill factor of the PWM in some cases can lead to periodic switching-off of the fan at a constant load, the fan will not be turned off, that is, the cooler will not work in passive mode, as promised, if the mother Board is not able to reduce the fill factor below 30%. Adjustment with voltage just allows you to extend the range down to about 230 rpm. the Fan stops when the voltage drops to 2.7 V and runs at 2.8 V.
In this test, our CPU with a TDP of 140W is not overheating even on the lowest fan speed, but the maximum temperature is close to critical.
Cooler Arctic Freezer i32 can be considered quiet device. Depends on individual characteristics and other factors, but in the case of coolers somewhere between 40 dB and above noise from our point of view is very high for a desktop system, from 35 to 40 dBA noise level refers to the category of tolerable, below 35 dBA noise from the cooling system will not be much to stand out from the typical bessonnyh PC components — fans of hull, on the power supply, video card and hard drives, and somewhere below 25 dBA, the cooler may conventionally be called the silent.
The cooler can remove heat from a CPU with a TDP of 140W (which in this case corresponds to 131 W consumption at 12V CPU connector on the mother Board) while maintaining very low noise levels (below 20 dBA). Of course, this conclusion applies to the condition with the intake temperature of the fan air cooler of 24 °C.If in real world conditions the air temperature inside the PC case will be higher, for example, at 20 °C (i.e., is equal to 44 °C), Arctic Freezer i32 with the task will still be fine, and still the noise level is very low and for CPU with TDP of 120 W and below, the operation of this cooler even in these circumstances, can be virtually silent — 20 dBA.
Additionally to check the claims of the manufacturer that at low load, the cooler can run in passive mode, we conducted two tests with a disabled fan in idle and video playback with software decoding.
Recall that the cooler side using a household fan is blown with a weak stream of air with a temperature of about 24 °C, in conditions of real operation are traceable to Cabinet fan. However, the obtained data allow to reasonably assume that even with much higher ambient temperatures in these modes the fan can be left off, the only question is whether to allow the mother Board to implement this mode, but certainly, if necessary, to control the fan, you can resort to a third party and, in particular, software solutions.
Unfortunately, due to the fact that the stand is being used by another processor, the results cannot be directly compared with those obtained previously for other coolers, even if we use the values of thermal resistance, not CPU temperature. To somehow compare Arctic Freezer i32 with the other coolers we have tested on the new stand CPU cooler of the same class, namely SilverStone AR07 remaining after the previous test. For comparison place on one field of the coordinate points corresponding to values of temperature and noise level in the mode with maximum load and at maximum fan speed. This representation of the results cannot be considered as ideal as the optimal combination of temperature and noise for a specific cooler can be reduced when the fan speed — temperature rise is not very high relative to the noise reduction. However, obviously a high heat load in our test suggests that very large reserve to increase the temperature there.
In this graph, the lower the point, the quieter the cooler, and what is left — the lower the temperature, so the most effective (i.e. ensure as low CPU temperature, and low noise level) coolers are located closer to the origin. It is seen that Arctic Freezer i32 in noise significantly better than the competition, and by the ability to cool both occupy the middle position.
Our testing showed that the cooler Arctic Freezer i32 can be used with processors with TDP of 140 watts, while even with the possible increase in temperature inside the enclosure to 44 °C will remain very low noise level — 25 dBA or lower. As to the advantages of the cooler should include a sleek design, good workmanship, anti-vibration pads under an air vent, the shield and the size, not to prevent the installation of memory modules with high radiators. Note that in the case of a small load Arctic Freezer i32 may operate in a passive mode with the fan off, but the control signal must have a fill factor below 30%, and the system is not considered a situation with a fixed fan abnormal.