Test and review: Alphacool Eisbaer 240 – water cooling system with the possibility of extension

Test and review: Alphacool Eisbaer 240 - water cooling system with the possibility of extension

Alphacool Eisbaer 240 tried to combine the advantages of closed loop CBO and Self-assembling solutions, eliminating the disadvantages associated with them. In our test lab just received a water-cooling system Alphacool Eisbaer 240, all the details of the tests you will learn in the review.

If you need a water cooling system, it’s usually two options. You can collect your own SVO ordering all the necessary components. In this case, you get a maximum configuration flexibility and expandability, but also take all the risks. But you can buy CBO closed loop, with which the manufacturer guarantees zero leakage and maximum ease of installation. But it will have to settle for standard configuration. CBO closed loop, generally do not provide for the possibility of expansion.

Fortunately, the market appeared interim solutions: Its closed-loop and the possibility of future expansion. Typically, you get a completely liquid-filled loop, so installation is no more difficult than the CBO closed loop. But if you want the future to expand the circuit, for example, adding a graphics card, it is also no problem. Even if you need to replace one component of the NWO, it will not cause difficulties.

Alphacool many years produces water cooling system for enthusiasts. Moreover, the German company not only sells its products in retail, but also offers them to other brands as OEM-manufacturer. It may be noted and Fractal Design Kelvin, and Cooler Master Eisberg. Therefore, experience in Alphacool accumulated considerable. With the new line of German manufacturer Eisbaer Alphacool introduces extensible CBO closed loop, the components of which are time-tested. Copper heat exchanger is a minimally modified version of the Alphacool NexXxoS ST30, the pump is a modification Alphacool DC-LT, and fixing compatible with Alphacool HF system.

Alphacool offers a complete family of Eisbaer. Also tested the model with 240 mm heat exchanger can be purchased options Eisbaer 120, Eisbaer 280 and 360. As you can see, Eisbaer line immediately covers the most popular formats. For our tests Alphacool sent cooler with 240mm heat exchanger. The suggested retail price in Europe is Euro 114,95. The cheapest model Eisbaer with 120mm radiator Eisbaer XT45 will cost 95.95 euros. Above 240-mm model NWO is Eisbaer with 280 mm heat exchanger ST30 for 124,95 euros, and its with 360-mm Eisbaer ST30 can be purchased for 139.99 Euro. Furthermore, the water block can be purchased without a heat exchanger with a pump, pipes and fluid. Eisbaer Solo will cost 49.98 euros.

Test and review: Alphacool Eisbaer 240 - water cooling system with the possibility of extension

The details

In our sample supplied user manual was not included, but in the retail version, it will be applied. Also added Alphacool mounting accessories for different CPU socket, Y-adapter for fans and two bags with thermal paste (Gelid GC-Extreme). Waiver of the usual syringes manufacturer Alphacool explained by the fact that the thermal grease in them dries up after a while, so a variant with bags preferable.

If not jam on the water block and an additional connection on the handset, Alphacool Eisbaer 240 could be mistaken for normal CBO closed loop. Staffing NWO comes with an assembled and filled loop, while it is much more compact than the typical Self-assembling solutions. No action on the filling loop from the user is not required.

Compared with the current CBO Asetek water block pump it seems rather cumbersome. But in practice this is unlikely to lead to any disadvantages, as the water block Eisbaer slightly exceeds the CPU socket dimensions, problems with memory, power subsystem radiators and other components will not arise. The pump is a kind of Alphacool DC-LT, it is relatively compact and inexpensive. For Alphacool DC-LT Ultra low noise Ceramic indicates a very low noise level, capacity 70 liters per hour, the maximum lifting height of 0.85 m and a capacity of 4 watts. Power is supplied to the pump via a 3-pin plug. In our tests on the pump speed ASUS motherboard 2,600 rev / min is not regulated. But Alphacool indicates that you can use the adapter to 7 V. With him, we got a little less noise (33.4 dB (A) instead of 33.8 dB (A) in the case open when the only additional source of noise remained the power supply fan) . Cooling performance deteriorated slightly (1 degree / min Fan speed 1.000). In general, reducing the pump speed is hardly justified, at 12, he has been working for quite quiet, hiding behind the level of fan noise.

Test and review: Alphacool Eisbaer 240 - water cooling system with the possibility of extension

Unlike water cooling systems with closed-loop water-block is available in cork, the closing hole to fill. Also there is a connection tube, which allows to expand and open the circuit if necessary. Fittings are standard G 1/4 “.

With the processor in Eisbaer 240 contacts a well-polished copper base.

Of course, ambitious users and overclockers for sure from the beginning choose Self-assembling water cooling system, which they can pick up exactly to suit your needs. Expandable CBO focused on those who need simple and safe to use solution that can be expanded as needed. Here, as in Self-assembling systems used detachable mounting tubes, and also help further connection that makes it easy to expand the circuit Alphacool. It also supports interoperability with ITS GPX Pro, you can combine the two circuits. Although the possibility of expanding limited to a maximum lifting height of 0.85 m. However, Alphacool points as a possible scenario, the use of additional water block for graphics card and two 240-mm heat exchangers in conventional Midi Tower case, here the problems should arise.

Two black glossy Alphacool tube concluded in spring sheath, designed to prevent the occurrence of fractures. With it, the tube remains flexible enough.

Test and review: Alphacool Eisbaer 240 - water cooling system with the possibility of extension

The CBO closed loop commonly used aluminum radiators. In combination with copper components may cause corrosion, so the liquid must be added various additives. Alphacool has decided to remove the root of the problem, so Eisbaer used all-copper heat exchanger, except that the threaded attachment of tubes made of brass for reliability. Regardless of the SVO model, using a slightly modified radiator NexXxoS ST30. Compared to the heat exchangers for the Self-assembling CBO is no additional fittings for the connection from the opposite side of the tubes. With a thickness of about 3 cm radiator NexXxoS ST30 in Self-assembling segment refers to the thinnest model that improves compatibility. Alphacool inflicted on the radiator very thin layer of paint, so as not to impair the cooling performance. Therefore copper shades can be seen only in the inner space of the ribs when viewed at an angle to the radiator. Fans can be installed on both sides of the heat exchanger. Under holes are stops that are too long screws do not damage the radiator.

As used two fans 120 mm Eiswind model 12 and the PWM control with a maximum speed of 1,700 rev / min. Minimum speed in our tests was 850 rev / min, although Alphacool indicates significantly lower speed of 550 rev / min. The reason, according to Alphacool, may lie in the different versions of the standard PWM. Fan in line with current version (1.3 of 2005), and the controller on the motherboard – 1.2 (from 2004). The difference in the versions can lead to problems in the management of fans or pumps through PWM.

Through the window in the water blocks can be observed for operation of the pump. To install the system on the water block simply superimposed mounting bracket.

On the back side of the motherboard uses a simple plastic plate. To install the provided screws and corresponding nuts with thread. In fact, during the installation of the water block will have to work hard, because the screws to be threaded through the holes of the bracket and the motherboard, and then screw them in the nuts, which are from the motherboard rear. With the installation of the heatsink on the other hand, no problem – he simply bolted to the body using the supplied screws.

Test and review: Alphacool Eisbaer 240 - water cooling system with the possibility of extension

After connecting the power Alphacool logo on the water block is highlighted in blue. In addition, LED is illuminated and the interior of the water block, which can be seen through the window.

Test configuration and testing procedure

We’ve put together a new test system that is closer to the mass gaming computers. 8-core Xeon conceded Intel Core i7-4790K place, which is very popular in gaming PCs. The Radeon HD 7970 from Gigabyte energy consumption corresponds to the modern high-end models. We chose the housing NZXT H630. Full Tower offers ample space for the highest CPU coolers, as it allows you to test large CBO closed loop. In H630 housing insulation measures are taken, so it is not focused on uncompromising cooling performance, rather on the optimal balance between noise and cooling. The same can be said about the popular body Define by Fractal Design.

Test and review: Alphacool Eisbaer 240 - water cooling system with the possibility of extension

Below are the specifications of the test system

Test configuration

  • Processor Intel Core i7-4790K (4.2 GHz)
  • Motherboard ASUS Z97-DELUXE (NFC & WLC)
  • RAM Corsair Vengeance LP 8 GB DDR3
  • Video card Gigabyte GV-R797OC-3GD
  • System Storage 240GB OCZ ARC 100
  • The power supply unit Antec HCP-1300 Platinum
  • The case NZXT H630
  • Thermal grease Arctic Cooling MX-2
  • Chassis Fan 1x 200mm (front)
  • 1x 140mm (rear)
  • Operating System Windows 10 Home

200-mm frontal fan worked with an acceptable noise level, because we switched it to 7 using an adapter. The rear fan we left at 12, so he moved on a constant rate of 1,100 rev / min. It is possible to achieve a reasonable balance between sufficient cooling performance and an acceptable level of noise the fan housing. And our test conditions as close as possible to reality. Too much to reduce the speed of the fan housing is not worth it, because then the body will accumulate too much heat.

We conducted noise measurement using the VOLTCRAFT SL-400 at a distance of 20 cm from the left side of the chassis. The case itself was soundproofed assembled and closed. Room temperature we normalized to 20 ° C, under this we checked the temperature using infrared thermometer VOLTCRAFT 800-200. During each stress test we were recording the temperature, the cooler had to endure a 30 minute run Prime95 (we used a rather “heavy» Small FTT test). The temperatures for the entire test period were recorded in CoreTemp tool magazine, and then we calculate the arithmetic mean of maximum temperatures (less deduction of the difference with the normalized room temperature). Him we shall be entered in the diagram. As we took thermal paste Arctic Evergreen MX-2. We spread the thermal grease on the CPU surface using WLP blades.

Here are the tools that we have used in the tests:

Software used:

  • CoreTemp 1.0 RC6
  • Prime95 x64, Version 26.6 (build 3)

We conducted the following test scenarios:

  • The regular fan at 1,000 rev / min
  • The regular fan at maximum speed
  • The regular fan at 600 rev / min
  • The regular fan at 1,000 rev / min
  • All measurements are in degrees Celsius.


As you can see by the results of the test Alphacool Eisbaer 240 among the most silent models CBO. At 1,000 rev / min operation cooler barely audible. At maximum speed the noise level is increased significantly, but the water-cooling system, it remains within acceptable parameters. While most air coolers at full speed, run quieter. In addition, Alphacool Eisbaer 240 very unusual noise performance. As a rule, the weakest link in many CBO is a pump, the chirping of which is clearly visible against the background of the fan noise. But Alphacool pump has paid particular attention to, DC-LT Ultra low noise Ceramic is very quiet. In a closed cabinet pump work can not be heard, it is hidden behind the noise of the fan. This is especially true for the complete fan who work fairly quietly, but with the evolved bearing noise.

Test and review: Alphacool Eisbaer 240 - water cooling system with the possibility of extension

Tests with the standard fan

The following test scenario, we evaluate the performance of the cooler with the standard fan at 1,000 rev / min and at maximum speed. For the tests we conducted CBO measurements without the housing cover so that it does not limit the cooling performance.

More recently, we have tested the CBO closed loop Arctic Liquid Freezer 240 with four fans in push-pull configuration. Alphacool Eisbaer 240 achieves comparable cooling performance with only two fans, bypassing all other models in our tests. As in the case of tests of other NWO, we removed the cover from the case NZXT H630, so that it does not interfere with air flow. This cover is designed for soundproofing quiet body, but in our tests, it just decreases performance. But to measure the noise level in order to better compatibility, we conducted tests with a lid.

To compare “pure” performance coolers without affecting regular fans, we equip all our reference cooler fans. We used a powerful fan Noctua NF-A15 PWM, the distance between the mounting holes is 105 mm, speed – up to 1,200 rev / min. If such fans can set on the radiator was absent, we used a more compact Noctua NF-F12 at a speed of 120 mm to 1,500 rev / min. In the case of coolers, designed for “real” 140-mm fans with hole spacing of 140 mm, we used the NF-A14 PWM.

At 1,000 rev / min, we got the temperature one degree higher than with regular fans. But Noctua fans are allowed to exhibit a much lower speed. At 600 rev / min cooling performance drops quite strongly in comparison with air coolers, Alphacool Eisbaer 240 takes place in the middle of the rankings.

Test and review: Alphacool Eisbaer 240 - water cooling system with the possibility of extension


Alphacool had not acted CBO segment of the closed loop under its own brand. But in the field of water cooling systems experience from German company rather big. With the new line Eisbaer Alphacool effectively used its experience and has implemented a few new ideas.

Alphacool Innovations are clearly visible when compared with the same cooler Cooler Master Eisberg, which was also produced by Alphacool, and has much in common. According to the radiator and water block exterior design difference is small. But Alphacool added to the tube a special link that allows you to easily expand circuit CBO. waterblock itself was seriously reworked. In Alphacool Eisbaer 240 pump operates at 1,000 rev / min slower, it is optimized for minimal noise and vibration reduction. There Alphacool tried to answer the criticism about Eisberg, in tests Alphacool Eisbaer 240 works really very quiet. You can reduce the pump speed by altering its power to the 7, but the effect is small. But very quiet CBO call will not work because of the fans. They were clearly audible even at medium speed, pump noise left by the wayside. Replacing the fans on a more quiet model, the same reference Noctua, will significantly reduce the noise level. Perhaps the reason is incorrect work with PWM controllers of old standard, as indicated by Alphacool.

The nominal capacity was pleasantly high. Alphacool Eisbaer 240 in our test system was able to show the level of performance that Arctic Liquid Freezer 240 was able to give only four fans in push-pull configuration. Add to this good compatibility Alphacool Eisbaer 240, slightly higher than the water-block area of the socket, although the body is also required to place the heat exchanger with the fans. Installation may take some time, but it is well documented. Contour system is already filled, so the installation is similar to other types of CBO “all in one”. It recommended after some time to check the fluid level, but due to the water-block window to make it simple. Of course, an important advantage Alphacool Eisbaer 240 is the possibility of expansion. Unlike typical closed loop systems, you can add to Alphacool Eisbaer 240 heat exchangers or water blocks. There is even a connection on the handset to the rapid expansion of the circuit.

This expansion capability Alphacool Eisbaer 240 compares favorably with conventional CBO closed loop. But we should remember that 240-mm model will cost 115 euros decent. But such an approach is quite typical: the same model Predator EK offers premium class with the ability to expand the circuit, and they cost a lot. For EK Water Blocks EK-XLC Predator 240 will have to pay more than 220 euros. Compared with the previously tested Lepa EXllusion CBO Alphacool Eisbaer 240 benefits from a sophisticated design, a high-performance cooling and user-friendly implementation of the expansion. If you are interested in expansion options, but performance would be welcome to comparable high-level look at the Liquid Freezer 240, which will cost much cheaper.

Alphacool Eisbaer 240 was able to present a very balanced system. Install and use the CBO is not more difficult than conventional models with a closed loop, and the price is slightly higher. At the same time, the system largely consists of components that are separately for Alphacool offers Self-assembling CBO, so there are opportunities to expand the circuit. Add to this excellent performance. All this allows us to award our Alphacool Eisbaer 240 award “Excellent iron.”

Benefits Alphacool Eisbaer 240:

  • High Performance Cooling
  • Expansion loop (via a special connection), topping up fluid
  • Excellent compatibility
  • The pump runs relatively quietly, it can slow down, switch to 7 (but it hardly required)

Disadvantages Alphacool Eisbaer 240:

  • Fans with noticeable noise Bearing
  • Users should check the fluid level and connections for leaks

Source: legitreviews

Test and review: Alphacool Eisbaer 240 – water cooling system with the possibility of extension was last modified: July 20th, 2016 by Tomas Shellby